I've thought some of you might be interested in some info about Puerto Penasco. I have spent the winter there for the last 9 years. Puerto Penasco is on the mainland at the top of the Sea of Cortez. It is only 4 hrs from Tucson or Phoenix. It is NOT a border town. It is, however, getting pretty "gringoized". Lots of condos and trendy restaurants being built. The RV parks are right on the beach. I stay at Playa de Oro RV Resort which is in the Mirador area in the southeast part of town. There are several other RV parks in this area. Other parks are on Sandy Beach on the northwest part of town. Both sides have nice beaches with the best surf fishing being in the Mirador area. Playa de Oro has 300 spaces and is a very nice park. They have limited sat TV, free WIFI, a restaurant and mini market, a rec hall, and a very friendly, english speaking staff. Although the tap water in Penasco is certified and many people drink it, I use purified water to drink. You can buy it for about 10 cents a gallon at the water plants. The electricity is good, with slightly high voltage. Most spaces at Playa de Oro can accomodate up the 36' rigs. They do have a few sites that can accomodate larger rigs. You can look at their rates at playadeoro-rv.com. Another good source of info is rptimes.com. This is the site for the monthly english newpaper. The parts fill up about 25-30% with snowbirds, with many Arizona residents coming down on weekends. The border crossing at Lukeville, AZ/Sonoita, MX seldom has lines. There is a duty free store at the border, on the U.S. side, as you are coming into Mexico. You must, as a minimum, get Mexican liability insurance on your vehicle(s). Puerto Penasco is in the Sonoran Free Trade Zone so you do not need any passports or visas to enter. Hope this answers most of your questions. If you have others, let me know.