RV Friendly Parking Tammin Western Australia. Tammin. The RV Friendly free parking area in Tammin is located at the Donnan Park Camping, 21 Donnan Street Tammin WA. This low cost parking area for fully self-contained RVs is available for a maximum of 3-nights for $10 power, $5 unpowered per van, per night. There is mobile coverage, bins, toilets, water and a dump point located at the Caravan Park / Recreational Centre Oval Wyalkatchem Road, Tammin. The Tammin Caravan Site is a popular destination for campers and travellers when exploring this part of Western Australia. This site provides a large parking area that can accommodate a variety of caravans and motorhomes, providing plenty of space for visitors to set up rig. The RV Friendly the Tammin offers two power boxes, ensuring a reliable supply of electricity for those who require powered sites. For campers who prefer a more basic experience, there are unlimited non-powered sites available. In addition to the parking options, the caravan site provides convenient access to public toilets, with other essential facilities located nearby.