We will be in SD in late March with two kids, ages 7 and 6. We're staying at the Hotel Del for four nights and then were supposed to head up to LA for a couple of nights. We just found out we don't have to be in LA until a day later than we thought so are considering driving to Joshua Tree/Palm Springs for that extra night. We're fine with the 2.5 hour drive from SD to PS (it would be a weekday, if that matters) and then another 2.5 hours from PS to LA if there are things to do/see in Palm Springs/Joshua Tree that would be fun/entertaining for the kids. None of us has ever been and we thought it might be nice to add some desert time into the trip. Any advice? Is it worth it for 24 hours or should we find something else to do?