Here is an action sports tracker that lets you capture your surfing action like a pro. Trace is a smart tracker you can mount to your board to track up to 5 sessions. It provides you with GPS mapping, wave count, speed, length of stride, calories burned, cutback angle, number of turns, and more. It has up to 10 hours of battery life.
Trace is compatible with iOS and Android devices. Did we mention that it will sync with your GoPro as well? You can get yours for under $200.