No need for a reservation. It does help if you check their Twitter feed to see whether they have reached capacity and have closed to any more visitors for a while, though. They'll tweet to say when they've closed to more visitors and when they're allowing more people in again. They're @waldenpondstste on Twitter.
Or take a swim! Great beaches and open water swimming; warm and pleasant even when the temperature is only around 70 F.
No just pay parking go hike😁😁😁😁
The area has 8$/day parking, I don't think there is a difference between lake / hike options in the parking.
One way hike around the pond is open to everyone
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