Rehoboth Beach Historical Society

The Rehoboth Museum is a quaint little place with a lot of information. First of all it is free (but please make a donation). The women at the entrance are not just kind and welcoming, they are passionate about their little gem.
My kids and I biked to the museum from Lewes on the bike trail which was easy and fun. The museum itself has two rooms and a kids playroom. While we were there they had an exhibit of the women of rehoboth, showing the fancy swimsuits from decades ago.
They also have a permanent collection of beach history which is fascinating. There are great photos of the beach from years ago. And there is a ton of information about how Rehoboth became so popular.
If you have a bit of time or it is a cloudy/​rainy day at the beach, go visit this museum.