We really like this pair of walkie talkies for the combination of waterproof, right range and cost.

• Rugged & Splashproof: Splashproof (IPX4) walkie talkie with up to 38-mile range. Built with a strong shell and drop-proof design so your radio can withstand harsh conditions. The waterproof design allows clear communication in rain or shine. 
• 60 Preset Channels: Easy access to 22 standard FRS channels plus 38 pre-programmed channel/privacy code combinations to secure your conversations from surrounding hikers, hunters or wherever your adventure takes you. 
• NOAA Weather Channels: Get 24/7 access to NOAA weather channels so you can always be prepared and connected with those you are traveling with in the instance you run into bad weather conditions.