Jarabacoa is the stronghold of extreme sports in the Dominican Republic, including climbing, mountain hikes, rafting, paragliding and much more. You will get most of it, but check your “equipment” at least swimming trunks and sturdy shoes you should have with you. Remember, it can get chilly in the mountains here, long clothes and a sleeping bag are certainly recommended. The tours last up to three days.
One of the best sellers of sports articles for me, as they can also be ordered online, is Sportcheck.