Recommended Low Cost Geocaching GPS units: Garmin 010-02256-00 eTrex 22x Rugged Handheld GPS Navigator – Price $180.00 Product Features High-Sensitivity, WAAS-Enabled GPS Receiver Provides Peak Performance In Any Environment Built-In Basemap Includes Lakes, Rivers, Cities, Interstates, National & State Highways, Railroads & Coastlines Features A 1.7-InchH X 1.3-InchW Screen With 256-Level Color Tft Usb Compatible… Read more »