Garmin GPS 60csx

http://www.amazon.com/gp/product/B000CSWHCY/ref=pd_lpo_k2_dp_sr_3?pf_rd_p=486539851&pf_rd_s=lpo-top-stripe-1&pf_rd_t=201&pf_rd_i=B000CSOXTO&pf_rd_m=ATVPDKIKX0DER&pf_rd_r=0RGDXDCHHY8KE4RG77PZ

only used in the car. I may have taken it in a ziplock on the yak once but I can't remember.  150 dollars

Thats the unit I have, and LOVE it    Antenna is so strong it works inside my hatch!  Very waterproof, has been fully submerged and worked fine