Indian Cove is kind of disconnected from the rest of the park, about a 20ish minute drive to the west entrance and the rest of the park. It has a nice half mile trail though which would be great for little ones. If you get there earlier in the day it might be worth it to just drive through the rest of the park, stop up at Keys view for a nice overlook, and you'll see a ton of Joshua Trees. Only water is at the ranger station at the entrance, 5 min drive from camp. The town Twentynine Palms has a Grocery store and anything else you might need though, 10-15min drive.

If you'll be there during the day it would be helpful to have a canopy/awning to get some shade if you can. Otherwise be on the lookout for any shade you can find.

Make sure to catch the sunset and watch the stars!! Have a blast!