Join me on a unique river treasure hunt as I float on an inflatable mattress and uncover some wild finds—including a high-end Tusa mask and snorkel, Ray-Bans, a military ID, and a hidden flask. This ...

Pull on fins and a snorkel mask and glide over any reef here, and the uncountable numbers are beside the point. I didn’t see a Bargibant’s seahorse, or even a fraction of the wildlife.

Use precise geolocation data and actively scan device characteristics for identification. This is done to store and access ...