I’d be a bit nervous to do something secluded like a hike or possibly even a walk in the park on a first date (if it’s with a stranger). My husband and I went on our first date to the zoo. Still a walk and talk activity, with plenty of easy conversation and reason for silences. Any museum or botanical garden would be the same vibe I think - plus they’re in public with other people around, so also safe! We ended up going out for dinner after because we were having such a good date and didn’t want it to end!