30th birthday ideas??

Jordan
I need help! My husband's 30th is coming up and this is his last BDay before we TTC. I can't think of anything good enough activity-wise to celebrate. I thought it might be nice to go to Gettysburg or skydiving, both things he's always wanted to do, but now it's supposed to be too cold for that. 😳 ! Any ideas would be greatly appreciated. Thank you!