Maybe try rowing?
Good god that makes my muscles so flipping sore. Also kayaking. There's rock climbing too but that is really not my strong suit personally...
I don't think weight training really has to be so conventional and routine. Here's a few things that I enjoy:
leg press
anything with a medicine ball, especially throwing with a partner
push ups and pull ups
bench press (preferably with a partner)
jump rope/calf raises/stairs
bridges
plank
leg raises on your side
crunches and sit ups (and bicycle crunches)
Add reps or increase weight/speed as needed. I'd say most of this can be as light or intense as you make it. Not a huge fan of working with barbells, dumbbells and kettle balls cause I feel like risk of injury goes way up.
