Anniversary Weekend

Okay ladies I need a little help. This weekend my boyfriend and are are celebrating our fourth anniversary, we are going up to Baltimore and spending 3 days (two nights) in a hotel. I really want to surprise him and have a plan for one of the nights we are there but I'm not sure what I want to do. He is definitely the more adventurous and experienced of the two of us which is why I want to surprise him so much. We have a small toy collection that I plan on bringing with us, including some rope that I can't wait to use. I was hoping y'all could give me some ideas/advice on some role plays or just how to be the initiator. (Or if you're from Baltimore and you have any suggestions about things we can do outside of our hotel room, that would be appreciated too.)