the foretrex 301 and now even better the 401 are great. The 401 adds the ability to attach a heart rate monitor. With the 401 coming out the 301's are about $109. It is wrist wearable and has worked for me int he woods, in the mountains pretty much everywhere. The think I like is that is uses regularl AAA batteries. Most of the wrist GPS's are made for joggers and have built in rechargeable batteries that only last a couple hours. The foretrex's last over 20 hours continuous on 2 AAA batteries and you can carry spares. They also have the ability to store a waypoint,,, as in where you parked the trailer, and you can go to a screen and it tells you direction and distance to the waypoint.