i would buy one that is water proof if i had it to do again,mine has been dropped and found in the bilge half full of water.don't ask me how!it is a small green ghecko 201 by garmin,it has top speed!it is still working after all it has been through.there is also the ever constant fear of dropping it in the water at the boat ramp,one that floats would be the shiznit!!!! my 2 cents!!!
I JUST LEFT THE GARMIN SITE, ALOT OF THERE GPS'S DO FLOAT!IT GIVES THE MODEL NUMBERS IF YOUR INTERESTED(GARMINGPS.COM)