Important nature tip: Please teach your boys NOT to pee into any water in the wild--no streams, creeks, lakes, rivers, etc. Peeing at least 10' or more away from water is OK because the soil will filter the pee before it pollutes a water source. Peeing directly into water immediately kills things in the water or--at best--sickens them. Help your boys enjoy nature without harming it. SUMMARY: Teach your boys to pee 10' or more away from water so the pee is filtered before killing living things in the water. Thanks.
Willing to learn a bit more? Don't let your boys pee near your campsite. We find the smell of pee to be obnoxious, but there are certain animals (beside dogs) & types of insects that are ATTRACTED to pee. Unless you want these critters to come investigate your campsite--especially at night--have a designated peeing place that is at least 50' away from your campsite. (Take a trowel on your trip so you can make pee holes.)
Make sure everyone in your group knows where it is and can find it after dark with a flashlight. The fresher the smell, the greater the attraction, so adding to the fresh pee smell in the middle of the night needs to be out at the pee hole, not "right-by-the-campsite" because it's "dark out there," "I'm scared," or any other reason. Tell them you'll go with them if they're scared--but NO PEEING AT OR NEAR THE CAMPSITE. :-( Use the pee hole. :-)