<human>: The title pretty much explains it, I'm looking for advice because I'm at a bit of a loss

Background... We live in NJ about 5-10 minutes from a nude beach, he's actually from here. Like he grew up here, and he grew up going to that beach. He's surfs before and after work, he is a beach person, but when he wants to relax or chill out he goes to the nude beach. He was up front about that with me from the day we met. I didn't mind much, I've never been there and I told him that's cool, maybe one day I'll feel comfortable trying to go there. That day hasn't come yet for me. 

Anyways I found some receipts in his car that kind of gave it away. I went looking one day for his car while he said he was surfing, and he was parked at the nude beach. That happened twice. Then he slipped up and posted a comment on Facebook that put his location there .... Idk how to tell him I know. Idk if maybe it's my fault bc I know this is part of his life and I'm forcing him to sneak around. I don't think it's sexual at all, I don't feel cheated on. I think, I wouldn't know honestly, I've never been there. But my gut says this is not sexual, this is him doing his down time thing. 

So I'm at a loss. One minute I think I should kick him out of the house. The next I think maybe I should ask to go with him. Then I'm like, maybe I should do nothing. Literally nothing about our lives have changed. Other than this we have a wonderful marriage and a baby boy. He's a great dad, he's a great husband, he provides, I never have to want a thing. I don't have any issue at all. But this leaves me so confused.

Can you condense the text into a few key points?
<bot>: husband grew up going to local nude beach. I'm not ready to go there. He has been going without me, secretly. I have no idea what to do with this info.