The beach and some mysterious caves
Tomahawk beach is an easy access beach close to Dunedin. So easy in fact, that if you have a four wheel drive at low tide, just drive right on to it. Tomahawk isn't named after the small Axe, it is a translation from the old Maori name, and means "dance by a gravesite". At it's southern side are some small tidal caves that you can walk into, it looks as if at some point someone tried to close them up. I can't find any information on that. On the far side you have some mighty sand dunes you can slide down and some great wild life to watch. There is also a playground and an abandoned school, if you know where to look.
Directions
Super easy to get here. From Dunedin, head to St Kilda and take Tahuna Rd to Tomahawk Rd, From there just drop down into Ocean Grove and find a park just across the bridge.