When you find a "spot" you dont want to leave, hit Spot Lock and the TM will return to that spot if you drift more than 5 feet away from it. Sorta like an electronic anchor. I saw this feature work at Talquin in the wind and it was great!.....Or you can elect to move around away from that area and 30 minutes later return to the Spot Lock and the TM will automatically return you to the last spot you locked on to.