Then you should certainly make them a part of as many activities as you can. Hopefully some ideas will come your way for things you would actually enjoy doing even with kids in tow, maybe even more because of them. Create new memories for you and the kids.
Raise the bar and look for things you might not have chosen to do on your own that will expand your kids lives. Maybe there are some outdoor hobbies you could consider starting that function on two levels. One with the kids. And one at the guys only level on weekends they are sleeping over with friends or family. They don't have to neglected. You don't sound like you would let that happen.
We are just wanting you to have that same level of concern for yourself. Don't neglect yourself. Teach your kids the importance of doing something for yourself in between new family activities. You are doing better than you think.