The main Bowentown campsite was very full very early, I ended up following signs to a car park just down the road. Both are free sites for self-contained vehicles for up to 3 consecutive nights.
The main site borders a lovely, calm, blue bay. ANZAC Bay. Here you can swim, snorkel, jump off a rocky warf and climb a hill to a lookout. I definitely recommend this place as it is beautiful. There is also toilets and a cold outdoor shower here.
Waihi beach is a stunning surf beach, packed with experienced surfers and keen swimmers, the sets can be easily compared to West Auckland beaches. Lovely little shops line the town.