Is there anything special about going to Weihai for a self-help tour?

The most distinctive is Liu Gongdao, a famous scenic spot in Weihai where Beiyang Navy was completely annihilated. There are some historical sites and exhibition halls on the island with good scenery. One day is enough to buy tickets at the tourist pier and take a boat to the island.

Other attractions include Shidao Chishan and Chengshantou Wildlife Park. Interesting, but not characteristic, because such scenic spots are similar everywhere.

In addition, there are several seascape parks and bathing beaches in Weihai, all of which are free. Check Baidu map before you go, or ask passers-by there.