And it turns out there are still quite a few possibilities here, and for all sizes of rigs...but none of them are ideal!
The one on the main highway, the Villa Las Brisas, has sold off the main section of it's trailer park and it's no longer open. However the area where the swimming pool is still has a parking lot big enough for a couple of large RV's so we went in and spoke to them.
Located at the south end of the main highway. GPS coordinates 15.85197 -97.05194
The girl said yes, they still accept RV's and they'll string electricity for you and a water line. They charge 200 pesos ($16.50) per night. They do have a sort of a hole in the ground dump station, so you can empty your tanks but you'll have to move your rig to do so.
This area is a bit run down and not the most scenic. It's also located on the main highway so you'll likely get some road noise. But you're welcome to park here.
But this area is better. One big rig could park up against this wall and be fairly level. Another parked beside it would have a difficult time getting level, but we've seen two big rigs parked in this area before, so it is do-able. No shade though!
They do have a half decent swimming pool area.
The only other option for larger rigs is the Hotel Villa Relax. Not a bad spot, but again no shade. At least you would be able to park your rig so that the rig itself provides your shade. Still, it's not the best...
Located at the north end of the main highway, near the airport entrance. GPS coordinates 15.86667 -97.07731
Definitely lots of room for any size rig...as is evidenced by these two buses parked here.
They do have an interesting swimming pool, although the water was a little cloudy the day we visited.
And even a tennis court!
Lots of parking...but again, no shade.
We visited this place twice, and both times there was nobody around to talk to! I did find a website, but not sure how up to date the info is. It says between 170 pesos ($14) and 230 pesos ($19) per night depending on the size of your rig. http://www.comerciosyhotelesenpuerto.com/news/hotel-villa-relax2/
There is another option, the Neptune Trailer Park, right on the beach. But it's a dump, and there's no way we would stay there.
Can't recommend this place, but if you really want to check it out it's at GPS coordinates 15.86199 -97.06178. The guy wanted 300 pesos ($24.60) per night!
The other places are all for smaller rigs or camper vans. There is one more that we could fit into, and I'm sure we could do it, but maneuvering would be tight. It's really the nicest spot though of all the ones we visited.
Cabanas El Eden is beside the Oxxo store on the main tourist section of Playa Zicatela. No sign or anything on the road and the entrance is kind of squeezed between the Oxxo store and a restaurant.
It's a tight fit, but I think Sherman could do it! GPS coordinates are 15.85365 -97.05592
Once you're in there, it's actually quite homey. They charge 60 pesos per person per night, so for a couple you would be 120 pesos ($10) which is not bad for being so close to the action. You can get a wi-fi signal from the place next door. Make sure you have a decent extension cord if you want electricity!
We bumped into fellow Mexican RV'ers Whit and Jan here! We've ran into them several times since we started RV'ing in Mexico!
The other options are only suitable for small van types of campers. There's the Palmas de Cortes...
GPS coordinates 15.86145 -97.06264
And Cabanas Edda at GPS coordinates 15.85860 -97.05803, but again only for van type campers. They charge 100 pesos ($8.20) per night.