Suggestions for family from 13 year old to 77 year old

We will be here (there) in July with my family. I'm almost 50, same with my wife, we have 13 and 18 year old girls, plus I'm bringing my 77 year old mother in law with us.

I would say we are all somewhat active, of course, my MIL won't be zip lining (but then she might). I'd be up for it and I could probably talk my wife into it, of course the kids would be all over it, but don't think we want to go that route. MIL and kids would be content sitting on the beach. My wife and I like to see historic sites but are also open to other suggestions. Kids probably not so interested, MIL may be.

Any suggestions on something EVERYONE in my group can enjoy?

This is your zip line stop. You'll be docking in Coxen Hole. Grab a taxi and tell the driver you want to go to South Shore Canopy Zip Line, then to West Bay Beaches.

Alternatively book an island tour with Victor Bodden that includes his zip line and a stop at one of the beaches, plus a visit to his place for the monkeys and other animals. With 5 people you'll get your own van and probably a lower rate.

Check out Victor Bodden tours. We've used him a number of times and had a great trip each time. He has a number of different tours available or you can do a private tour that you design. Make sure you stop at Victors house and see the monkeys.

His tours are convenient for everyone, we had my dad with us last year and he's 80 as well as my 14 yrs old son.