Can I take these T465 radios on a camping trip

Yes.Absolutly you can .The $65 two way radios are light weight and easily fit in your back back .They are very convenient as they charge using micro USB chargers like the smartphone do now and easy to charge.
It has weather-proof design with IP-54 rating and helps if it rains or you’re in the water during camping. It has weather alert radios with FM radio built in and comes handy during emergencies during camping.
It will not take a submersion of more than few minutes, though in my experience a quick dip won’t necessarily destroy the radios with everything is sealed up and you get the radios out quickly