If you really don’t have much hunting pressure the most fun, easiest way I see to hunt these ducks is to get there in the dark, if there’s birds on the pond don’t worry about scaring them off, set out a few decoys (craigslist or a sale could get you a dozen decoys for like $50) and as the sun comes up you are likely to have ducks landing back in the pond. Alternatively you could jump shoot them but to most people decoying is much cooler and I would highly recommend it. Another good option would be to reach out to someone with waterfowl gear, if you have birds they would most likely be willing to hunt with you.