Parents coming to visit

So, my parents have been planning a trip to visit me and my hubs for a few months now. My mom has planned a whole weekend including a girls spa day and a trip to the adventure center with ziplining and whitewater rafting on the agenda.

I’ll be 8 weeks when they get here, which given the plans I don’t think there’s any way I can NOT tell them. I had planned to wait until closer to second trimester. The spa won’t even do prenatal massages until 13 weeks.

There’s not a lot of museums or indoor things to do in this town. Any suggestions on what to do with the fam for a weekend that’s more pregnancy friendly?

Thanks!