It appears the reports about the ‘kids’ getting lost in the caves was actually wrong, they were blokes exploring without maps or local knowledge who got lost, and jokingly told their rescuers they were looking for Pokemon, which got taken seriously by the meeja, however, there’s been an incident in Weston-Super-Mare at Birnbeck Island, with kids accessing the derelict pier and the rocks around the island, which had the lifeboat crews out, because the walkway to the lifeboat station on the island became too dangerous for the crews to walk along! The tide comes in at 3mph, walking speed, and is really bloody dangerous around Weston, Burnham and Brean, so it could have been a tragedy.
Apparently the underlying geolocation system this game uses comes from an older spy game, where the geolocation was used for things like virtual dead-letter drops and the like, so the Pokemon can turn up anywhere, including the goldsmith shop in Corsham where my mate works!
They’ve apparently had a couple of rare/high value ones appear there…