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Questions tagged [sea]

Questions specific to the sea or oceans

4
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2answers
121 views

What are the differences between a lighthouse and a light station in terms of the specific purpose?

One summer evening we drove to Race Point, the farthest tip of Cape Cod, Massachusetts, USA. We were told there was a lighthouse at that spot, and wanted to see the light shine through the darkness, ...
1
vote
2answers
112 views

What type of boat is this with a single mast and a square sail? [closed]

What type of boat might this be? Or what category of boats would it fall under?
3
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1answer
82 views

How predictable are the doldrums?

There have been a few Atlantic and Pacific row boat crossings. Poor weather is a significant risk. While it might be nice to row with the wind at your aft (back of boat), it might also be nice to ...
2
votes
0answers
188 views

How much food is needed for three months of food when rowing across an ocean?

Related to this question, if one were to go on a three-month rowing trip across an ocean, is there an estimate of how much the food would be needed? It's certainly possible to give an estimate when ...
0
votes
1answer
80 views

What are the shortest and longest crossing points of the Atlantic?

Inspired by a recent question. If I want to cross the Atlantic Ocean in a boat, what are the shortest and longest possible crossing sites? Where crossing = going from one continent to another where ...
8
votes
2answers
115 views

What is head/lift indication in a digital compass on a sailboat?

A simple explanation would be great. I am reading a manual for digital compass and there is a paragraph with the following words: The SpeedPuck automatically detects when a sailor is trimmed to a ...
7
votes
1answer
140 views

How can you identify whether brackish water is too salty to drink?

Sometimes there are sources of water which are slightly contaminated with salt, such as coastal wells or pools of rainwater in rocks near the coast, or water containers with pinhole leaks which have ...
5
votes
2answers
102 views

How reliably can you assess the condition of a reverse-osmosis desalinator?

Handheld desalinators operating on the principle of reverse osmosis are available for emergency use in lifeboats. Sometimes they appear for sale unused in their original packaging at a very steep ...
5
votes
1answer
289 views

How to recognize an ocean desert from the surface?

There are large areas of the ocean that are essentially lifeless, often called ocean deserts. If I am traveling the ocean, and not familiar with potential sea life in the area, can I tell from clues ...
4
votes
1answer
158 views

When fishing in the Ocean off the US coast, at what point do fishing laws stop?

If you are fishing in the ocean off the United States Coast. At what distance from shore do US fishing laws no longer apply? The US Coast Guard listes, boundaries at 12, 24 and 200 Miles. ...
4
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2answers
257 views

Portable desalination hand pump filter life?

I was looking into portable desalination hand pumps. and I found this one one Amazon for $959 it says the Katadyn Survivor 06 is the world's smallest hand-operated desalinator and can easily fit ...
5
votes
1answer
97 views

Can I get fresh water from ocean plants?

In the answer to Can I get fresh water from ocean fish flesh? I learned that the water I can get from eating fish has a low enough salt content that it will hydrate me, BUT the high protein count will ...
4
votes
1answer
72 views

How do some of the materials in the clothing we wear endanger marine life and the undersea environment?

I was recently told that many of the clothes we wear are made up of materials that are dangerous to marine wildlife, and the undersea environment. I'm curious as to whether or not it's true. I know ...
15
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1answer
2k views

Can I get fresh water from ocean fish flesh?

Ocean water has about 35 Grams of salt per liter. For the human body salt content in body fluids is about 9 Grams per liter. See related question How much sea water can I safely drink? While it is ...
4
votes
1answer
96 views

Does a hands-free kayak bilge pump exist that is as speedy and reliable as a hand pump?

Does anyone have any experience they can share with actual use of a hands-free kayak bilge pump? I’m curious about foot-operated/electric/other, purchased or custom built, anything that lets me keep ...
2
votes
0answers
80 views

I feel little stings in the sea [duplicate]

Yesterday I went to the beach when I get in the water everything was fine the water not cold the sea very clear. Then I started feeling little stings at all my body.I thought it was my idea. When I ...
4
votes
1answer
54 views

Telescopic surf fishing rods - Are less segments better?

I am looking for a telescopic surf fishing rod of about 14 feet length & lure weight up to 250grams/8oz. Is it better if a telescopic surf rod has less segments or does it not matter ? This one ...
6
votes
1answer
90 views

Beach fishing - Should I get waders or long rod to cast further into the sea?

Many beaches where I want to do surf fishing (from shore) are almost flat for many feet into the sea. Some of the beaches have a steep slope into the sea. I hope to catch striped bass, perch or ...
6
votes
1answer
105 views

Are coasteering routes graded, or does one have to rely on a qualitative description of the difficulties of a route?

What, you may ask, is coasteering? Does saying it is similar to kloofing help? Thought not. Many sites describe coasteering; here is a brief description exerpted from outsideonline.com, What Is ...
8
votes
3answers
206 views

Kayak for fishing and low class rapids?

I am in the market for a kayak and am wondering what type of kayak or what features I should look at given my requirements. Here's the details you'll probably need to help me out: I'm 6'1" and 215 ...
11
votes
1answer
4k views

What are those white spots on the sea

Yesterday I was flying above the Mediterranean sea, it was a nice day, without storms or strong winds. I fly around 20 minutes above it before arriving to the ground. During these 20 minutes I saw ...
9
votes
1answer
229 views

Is it legal to sail a personal-size boat in the ocean in Massachusetts during a thunderstorm?

When I was younger, during the late 1960's and 1970's, my Dad had a personal-size sailboat, called the Sunfish. He loved it because it was lightweight, easy to sail on his own, and had room to ...
7
votes
2answers
139 views

What part of the world has the largest variety of corals?

I'm fascinated by corals. I've been told there are more than a thousand varieties spread out in bodies of water throughout the world. What part of the world has the most varieties of corals in a ...
5
votes
1answer
371 views

What is the history of the Duckbill rock formation in Oregon?

While searching the internet for fun places to go in the Western United States, I came across a number of articles discussing the willful destruction of a rock formation in Oregon called Duckbill. It ...
6
votes
1answer
250 views

Where exactly is this rocky shoreline in the Downeast region of Maine, USA?

During the second week of October, 2016, my husband and I went for a drive from our home in Massachusetts to the state of Maine. One of the things we wanted to see was the town of Bar Harbor. ...
11
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2answers
388 views

Is sunscreen toxic to marine life, especially coral reefs?

As part of an effort to be a responsible user of the world's waterways, I've been thinking about ways to reduce marine pollution. A friend told me that certain chemicals in common brands of sunscreen ...
13
votes
2answers
255 views

What safety equipment should I carry for sea-touring by kayak?

What equipment should I carry in case of emergency on a coastal kayaking trip? I normally do short trips (1 week or less) around the islands of northwest Scotland. I tend to travel solo (sometimes no ...
19
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0answers
599 views

Identification of a jellyfish-like, shapeless sea-creature from India

Photographed off the Western coast of India, Goa, to be precise. Not even sure this is a creature since I've never seen anything like it. It appeared to move by shooting tiny jets of water from its ...
5
votes
1answer
253 views

Which color of these Swim Goggles would be easiest to spot in/ on warm coastal ocean water?

Which color of these Swim Goggles would be easiest to spot in/ on warm coastal ocean water? Aqua Sphere Kayenne Swim Goggles PS: This is not a shopping question (I'm already planning to buy, just ...
12
votes
3answers
1k views

How to get out through surf in fins?

I got myself some short fins since as a fairly weak swimmer especially in my legs I wanted a bit more confidence and power when swimming in the sea. However one basic problem I've encountered - how ...
10
votes
1answer
798 views

What are these round, spiny, puffy, green things from the ocean in Northeast United States?

Last October, we were on a road above a beach in a small town near Bar Harbor, Maine, in the Northeast United States. We looked down and saw two fishermen loading their trucks with piles of something ...
14
votes
3answers
2k views

Technique for swimming with fins?

I recently bought some fins... Short, much stiffer than some fins used by divers these are more aimed at surfing. I can feel they make me faster but am struggling with technique. I feel I'm fighting ...
7
votes
1answer
146 views

Do jellyfish actively avoid swimmers in Mediterranean?

I swam in Mediterranean in Italy quite often. There often were white (not spectacular looking) jellyfish around - and quite a lot of them. I tried not to touch them because I was afraid to get burned (...
7
votes
1answer
2k views

Can I guess the size of a shark by the size of its dorsal fin?

Is there a relative scale to which one can estimate the size of a shark by looking at its dorsal fin? I know it will differ from species to species, but is there a general guideline maybe for each? ...
7
votes
1answer
157 views

Did I save, or prolong the death throes, of the tuna crabs?

Walking along the strand this morning in Monterey, I was confronted by hundreds (at least) of stranded (no pun intended) tuna crabs (I thought they were shrimp, but a visitor from San Diego told me ...
5
votes
1answer
69 views

Can deep wave action be partially predicted by lunar phases?

Where I walk weekly (Del Monte Beach in Monterey, California), I beachcomb for shells, glass, and particularly stones. Most of what gets cast up is rather dull and uninteresting - gray and black rocks ...
8
votes
1answer
143 views

Where have all the sandpipers gone?

(long time passing). I walk along Del Monte beach in Crow City, USA (Monterey, California) quite often. For quite awhile, sandpipers were there in abundance - more than any other bird. I haven't ...
8
votes
1answer
116 views

What is the Chincoteague Pony Swim on Assateague Island in Virginia and Maryland?

Ever since I read a book called Misty of Chincoteague as a child, I've wanted to see the Wild Chincoteague Ponies, on the Eastern shore of the United States. I believe there are two herds on ...
6
votes
1answer
90 views

Are Dolphin sightings seasonal or serendipitous?

I walk along Del Monte Beach in Crow City, USA (Monterey, California) quite often. It is not too rare to see dolphins frolicking (so it seems to me, although they may just be going about their ...
10
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1answer
100 views

Are the birds that snatch bread out of the air “more citified” (tamer) than those who let it drop?

I often take a slice of bread to the beach when I go on my beachcombing ramblings, and throw pieces of it to the shore birds that are, like me, combing the beach but, unlike my search for "jewels" are ...
6
votes
1answer
141 views

What makes some beaches better spots for beachcombers than others?

I live within walking distance of Del Monte beach in Crow City, USA (Also known as Monterey, California). I enjoy scouring the beach for interesting-looking stones, seashells, and bits of seaworn ...
20
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2answers
3k views

What's the difference between a fjord and a fjard?

Last year we visited some friends at their summer home in Lamoine, Maine, in Northeast United States. They took us to a place called Somes Sound, on Mount Desert Island. It's either in or near Acadia ...
17
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2answers
752 views

Swimming while in the high seas

When sailing, can the passengers of the yacht safely go swimming while in the open seas? That is, when some miles away from the coast-line.
8
votes
3answers
1k views

Is this sand dollar with barnacles attached to it at all rare?

While taking my usual stroll along Del Monte beach in Monterey yesterday, I found this sand dollar with a clump of barnacles attached: Is this rare at all? Any observations on why it would wash up ...
12
votes
3answers
261 views

What Navigation Aids can I make on an island with only a knife?

In a recent discussion about navigating from a deserted island, it was suggested that if I have a knife and natural resources I could create my own navigation aids. In this instance I was planning to ...
8
votes
1answer
92 views

How do Plover sentinels give the “move out” signal?

During my usual weekend morning jaunt along Del Monte Beach in Monterey (California), I noticed for the first time the Plovers, who normally seem to forage nonstop, actually taking a communal break. ...
7
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2answers
151 views

Can you use a pull buoy in tidal water easily?

Ok so I'm getting a pull buoy to help with my pull exercises when swimming (and a kickboard for the same with kick exercises) and I want to know if I were to go to a lake or the sea and swim, is it ...
7
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3answers
411 views

Why do Sandpipers and Plovers “hang out” together?

I walk on Del Monte beach in Monterey, California quite often. I see LOTS of Sandpipers there; and always with them are Plovers (which remind me of little frenetic Killdeer). The Sandpipers dig into ...
3
votes
1answer
295 views

How to react to a shark attack

There was this story around Mick Fanning this year. He was attacked by a shark in a surfing tournament. In 2015, Fanning survived an encounter with what is suspected to be a great white shark ...
9
votes
1answer
62 views

Looking for snorkeling sites with healthy coral

I've snorkeled only in Hawaii, the Seychelles, Palau and Yap and never seen anything but healthy sites with no bleached coral -- maybe because I was with guides who knew the area. Thus, I am spoiled. ...