As I neared the point it became evident that some current was running. Although the bottom became more barren, around the rocks that jutted out into the sea schools of baitfish and pink maomao indicated there might be some action on the up-current side of the point. In the distance I could see the rock wall dropping vertically to the bottom of 80 feet. A school of large koheru swam past below me, disordered and moving fast. Expecting to see a school of kingfish in pursuit I made a dive, waiting motionless in mid-water. I waited without seeing anything till the last of the koheru had passed and then returned to the surface. As I lay breathing for another dive, I looked down to see a bill waving from side to side about 10 feet below me. In a couple of seconds the rest of the big striped marlin came into view as it rose from behind me to check me out. Although brightly lit up, the marlin was swimming slowly and as it passed underneath me it began to sink back down. I made a shallow dive over the top of it, moving very slowly so as not to spook the giant fish which was already almost out of range. Picking a spot just behind the gill plates I took a shot, hoping to hit the spine or the back of the brain. However, the size of the fish must have led me to underestimate the distance as my shaft connected low in the shoulder. The marlin continued to swim off slowly, then came to a halt and rose vertically to the surface where it stayed, head out of the water and shaking slightly for several seconds. Thinking that I had stoned it I swam forwards, then backed off again as it righted itself and moved off towards open water.