We have two Pekin ducks, about four months old. When they were ducklings, they loved to go for a swim in the bathtub or kiddie pool. Well, we built them a really nice pond but they NEVER GO IN. If we put them in, sometimes they will have a great time, but mostly they just want to get out. The pond is level with the ground so they don't need to climb in and it is kept clean (with a filter and fresh water when needed) We feel really bad because we want them to enjoy the pond, and we also want to enjoy watching them swim.

Any ideas?