Amazon.com has a Garmin Geko 101 GPS with Waterproof Exterior for $59.99 after $20 rebate with Free Shipping.
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- Compact 12-channel GPS receiver with high-contrast display (100 x 64 pixels) n
- Stores 250 waypoints n
- Waterproof: submersible for 30 minutes in one meter of water (IEC 529 IPX7 standards) n
- Easy operation: five buttons for one-hand use n
- 12-hour operation on 2 AAA batteries