So today is my H and my "dating" anniversary

. We usually celebrate every year with dinner, or a movie or something, but this year I decided I would plan something specific as a surprise. (Which will take place this weekend). My H and I are outdoorsy people, and I was hoping to plan a day doing fun things like that!
So here was my idea! My H has never been horseback riding, so I thought that might be something new/fun! Then, we could do a hike to the spot where we got engaged. (Which was also the same hiking area that we had our first date as a couple). I was thinking something like that, pack some food, and maybe even do a camping thing overnight. The only downside to this whole idea, is that this entire week, and entire weekend, is forecasted for nothing but rain! So that brought me to PlanB. I was thinking we could do a drive into the next city or two over. Check out some of the local attractions, restaurants, etc, and possibly stay the night. The downside to this plan, is we can't bring our dogs--and who would normally be able to watch them, can't. So now both plans are kinda at a standstill, & I likely need to think of something else as a replacement!
Does anyone have any unique/fun ideas?? I was so excited to plan something different, and have a special/fun weekend together, and now I have no idea what to do! It doesn't help that we're a day away from the weekend! Any suggestions would be *greatly* appreciated! Thanks in advance!!
*J