As a family holiday I’d say Neilson Flotilla
I’m lucky enough to have had a couple of big chunks of time abroad. A round the world ticket and over landing in a Truck with mates to Tanzania
Based on that I really rate the following
America Utah, California, Colorado
We loved climbing and back packing in Yosemite. Only upto about VS with my wife but still great. (hmm not that I can lead VS today)
Mountain biking in Utah brilliant
Oh and some one told us that at any grade the best single crag in the world was Arapiles, IMHO that’s fair comment
But of those I’d say Utah for the White Rim Trail and Moab. didn’t go rafting but I’d throw that in