Here in Reno, a popular summer activity is to go tubing down the Truckee River. We usually go for about 3 hours, which is a long time to be phoneless.
Sometimes we go down to Las Vegas, where beach / day clubs are a big thing. Unless you're a high roller and can spring for a table or cabana, there isn't really anywhere you can set your stuff down. Ppl just roll up their clothes in a towel and put it in a pile with everyone else's stuff, so it's not the ideal place to put a phone. Thus, the decision comes down to not bringing your phone out at all, but then being phoneless for a large part of the day.
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