Go to Honolii and enter the water on the right side, long paddle past Privates and rock bottoms, to the point by the cliff on the far right. Thats Tombstones.
Totally badass break. Not for beginners! The main breaks at Honolii have to be at least 10 foot face or bigger for Tombstones to go off. Tombstones is very dangerous when big (10ft+),its a very powerfull break that starts at the point and goes towards the huge boulders by the cliff, you have to be fast on your turns to not get taken right into the huge rocks. Mostly breaks to the left, but sometimes right. The left can be a really long, nice ride.
Ive been going there for over 10 years , and have only seen one shark out there. Better be a pro! Good luck