Handheld GPS for Marine Use?

FormerHangie

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I'm buying a Waverunner for my daughters, and I'd like to get them a waterproof portable GPS unit to keep them from getting lost. I'm trying to encourage them to be a little more adventurous, and If they know they can find their way back to the marina, they'll be willing to stretch their legs a little more.

Also, does anyone other than Garmin make these things?
 
How about a waterproof case for the cell phone, plus an app (if there are any that have nautical charts)?
 
How about a waterproof case for the cell phone, plus an app (if there are any that have nautical charts)?

This. I’d think it’d be more intuitive for them to just use their phone and keep it in a waterproof case/bag. However, the Garmin GPSMap 78 is supposedly waterproof and will float if dropped in water.
 
How about a waterproof case for the cell phone, plus an app (if there are any that have nautical charts)?

This. I’d think it’d be more intuitive for them to just use their phone and keep it in a waterproof case/bag. However, the Garmin GPSMap 78 is supposedly waterproof and will float if dropped in water.

That might work,but I'm worried about them dropping those stupid expensive IPhones into the lake. I'd have to come up with something that floats.
 
I have a Garmin 496,that also has a marine chip. Not a cheap solution.
 
I thought Magellan was in this market, but a quick search suggests otherwise.

This. I’d think it’d be more intuitive for them to just use their phone and keep it in a waterproof case/bag. However, the Garmin GPSMap 78 is supposedly waterproof and will float if dropped in water.
If the OP goes this route, verify the battery holder is also water-proof. IIRC, that unit takes a couple of AA batteries. If they do dunk it, they may need spare batteries and something to dry out any water that got in.
 
Could maybe find an older cell phone to just use for GPS (no phone plan). Download a Marine GPS app and have at it. If dropped in water, it was just a cheap old phone.
 
Navionics and a waterproof cell phone case...$4.99 app...
 
Pilotage, kids, pilotage.

That's we use now. The lake where this waverunner will be based is a dammed river, with lots of creeks and islands. If have a reasonable knowledge of the lake and the visibility is good, then pilotage works well. Although they've been on that lake for years now neither of them wants to drive the boat and they don't know where they are most of the time. I'd like them to feel comfortable ranging around the lake, and lose some of the timidity that they mother has taught them.

[RANT] You hear about how girls and young women are afraid to do many things quite often in the media, and then there's usually some speculation about the causes of these things. Lots of women blame society, others the "patriarchy". I've seen it in action and it's their mothers that make them this way. My sister wasn't raised to be timid about doing things and she isn't. My wife has taught it to my daughters. There are lots of them that even after having had their drivers license for more than a year who are afraid to drive on the expressway. Once when I was 17, we were living in St. Petersburg, my dad was working in Atlanta, and there was a car race he wanted to drive in that was in Savannah. He asked me to meet him there. I got in my car, drove over to where the truck was kept, brought it home, loaded it with parts and tools, went over to where the race car was, hooked up the trailer and loaded the car on it, got some cash from my mother to buy gas, and headed off to Savannah, no cell phone, no GPS, just a map (which I didn't need, I knew how to get there.) and some cash. If you suggested to my wife that one of my daughters do something like that I think she'd faint. {/RANT]
 
^^^

Things do look different from the water. Harder to spot the inlets, or whatever, from the different perspectives. I'm not sure what you could use for a landmark.

It doesn't seem like a nautical map is what you are looking for, since channels and markers aren't anything to worry about on a waverunner. Pretty much and handheld GPS, and maybe Garmin is the only one that makes them anymore, should work. Cell phones with a GPS chip can do the job, too. I think most of the handheld Garmins are waterproofed to some level and with a good neck lanyard or sturdy clip to a life-vest would work out OK.

Some of the Garmin handhelds also have built-in radios. I'm not sure of the range, but it might be a way to keep in touch, too.

I have a very basic Garmin etrex that would work for what you want to do. I think they still sell them.

edit:

Yes, they do sell the etrex.

Here's the model I was thinking about (with the radio), they claim 20 miles range. IPx7 is splash/rain proof and 30 min in less than 1 meter of water.

https://buy.garmin.com/en-US/US/p/576031

edit/edit:

This one floats:

https://buy.garmin.com/en-US/US/p/517154
 
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That's we use now. The lake where this waverunner will be based is a dammed river, with lots of creeks and islands. If have a reasonable knowledge of the lake and the visibility is good, then pilotage works well. Although they've been on that lake for years now neither of them wants to drive the boat and they don't know where they are most of the time. I'd like them to feel comfortable ranging around the lake, and lose some of the timidity that they mother has taught them.

[RANT] You hear about how girls and young women are afraid to do many things quite often in the media, and then there's usually some speculation about the causes of these things. Lots of women blame society, others the "patriarchy". I've seen it in action and it's their mothers that make them this way. My sister wasn't raised to be timid about doing things and she isn't. My wife has taught it to my daughters. There are lots of them that even after having had their drivers license for more than a year who are afraid to drive on the expressway. Once when I was 17, we were living in St. Petersburg, my dad was working in Atlanta, and there was a car race he wanted to drive in that was in Savannah. He asked me to meet him there. I got in my car, drove over to where the truck was kept, brought it home, loaded it with parts and tools, went over to where the race car was, hooked up the trailer and loaded the car on it, got some cash from my mother to buy gas, and headed off to Savannah, no cell phone, no GPS, just a map (which I didn't need, I knew how to get there.) and some cash. If you suggested to my wife that one of my daughters do something like that I think she'd faint. {/RANT]

Understood. Two months after I turned 16, my father sent me to the opposite side of the state to go hang with some family/cousins. He gave me a map and a brief synopsis of the route. No cell phone, just an '88 300ZX with the t-tops out and a 3hr drive to some place I'd never been, lol. I also grew up going to several large area lakes, which I never felt too nervous about roaming on the jet ski or boat. Sometimes you have to make them push their boundaries to expand their comfort zone.
 
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