I was underwhelmed by the Volcano line tbh, they really missed a trick making the surroundings have a slight Hawaiian feel. These sets really need more scenery and not just a dozen more whacky vehicles. JANGBRICKS had a video showing off all the volcano sets and it looked comical having so many vehicles with such a small quantity of actual worldbuilding supplied by the sets themselves.
Scuba had a good quantity of both, Arctic understandably is more dependent on vehicles due to the barren nature of polar lands, but the Jungle sets should have at least one large brick-built tree in them. Jungles are meant to be dense and not look like a suburban park with a few exotic animals and 10 large vehicles parked in it.
Adventurers wasn't afraid to have much smaller vehicles and more buildings and context, and it was better for it.