I used to snorkel for golf balls, in high school during the summer, at 10- 25 cents per, depending on make/condition a few hours could net someone a significant amount of money. On a good, day 400-500 golf balls could be found.... ALL THE WEEKEND HACKERS, made for a decent summer job. Unfortantely most golf courses you need to have an "IN", or you have to offer to sell back for practice balls, at a even larger diso****ed price. Another problem would involve most ponds you can only hit up once a year, maybe twice....Word to the wise stay away from the stagnant ponds, or at least wait until mid summer when the pond dries up.... Nicer courses, with filtration systems, or constant running water, are much better.... Not a "career" job, but for some extra cash for a high school, or college student, it defenitely has perks, of being able to scuba dive, snorkel... and make some money... OOOO those were the days...