Vehicles are not allowed on the entire Huanhai West Road. You can only park your car nearby and walk or ride there. S Bay, the internet celebrity check-in point, is on the Haixi side. After passing Xizhou Ancient Town, you can drive along the Erhai Lake. The entire Haidong side of the car is along the Erhai Lake.
Erhai Lake is an open natural landscape. You can drive your own car and walk along the seaside. There are no tickets for Erhai Lake. When you need to take a cruise, you can go to Erhai Park. There are cruise ships and speedboats.