I would suggest that you stay in the Jumbo Rocks CG in Joshua Tree National Park. Dry camping, but the area is spectacular. IMO, the north side of Joshua Tree park is prettier. If you are near the town of Joshua Tree, Ca., I have a friend that was given an OK to spend the night at the Visitors Center. Might work for a day trip into the Park.
I stay in Membership parks so really can't suggest a pvt RV park for the Palm Springs area.
We stayed at Oasis Palms RV Resort 2 weeks ago. It is south of I-10 a few miles. It is very nice and in a citrus grove. You can pick what you want from the trees. Very nice pool, great wifi. No cable, but we have a dish. It is a small park, nice people.
It is also a Passport America park and they let you stay for 2 weeks at half price.
Fleetwood Discovery Diesel Pusher with Jeep Unlimited Toad.
x2 for Jumbo Rocks in Joshua. Spectacular park. Palm Springs too fancy for me--prefer Borrego Springs State Park. Another spectacular beautiful place. But it is best for hiking, exploring and enjoy desert landscapes, not city stuff.
2007 Northwoods Arctic Fox 32 5S Fifth Wheel used for fulltiming for several years--SOLD
2011 Keystone 23rks Hideout to poke around the smaller parks in the great Southwest
2007 Chevy Silverado 2500 HD Diesel
Prodigy brake control
Yes,Jumbo Rocks is the best campground in the park.Indian cove near 29 palms is real nice too,but it's sepreate from the main park so you have to leave and then re-enter,that's no big deal as your pass is good to do that.A lot depends on what type of rig you have as the spots tend to be small for a large MH or trailer. The north side is by far the best area,enter thru Joshua Tree or 29 Palms,they both have a vistor center to get info.I belive Indian Cove Campground accepts reservations the rest are 1st come.