Whats s good GPS for boats?

[Gregg14]

does anyone know a good GPS for a boat? :):)

[Mr. Demeanor]

The Garmin Nuvi 500 and 550 can be used in the cat with roadmapping or the boat with marine charts. Pretty reasonable ones on Ebay. I think the only difference is the 550 has mapping for Canada but check into that.

[petehubbell]

I'm happy with my ETREX. I don't use it for navigation, just speed verification. I purchased it at Academy sports for around $80. Pete

[HST Madman]

Got my ETREX on Amazaon.com for 39.99 and love it. Only use for speed.