Nischintya: In Hawaii, Prabhupada told Sudama Maharaj that the devotees could maintain their health by going swimming every day in the ocean, and Sudama Maharaj thought that the devotees wouldn’t just take a dip and come out, but they’d go swimming all day. Sudama Maharaj said, “Prabhupada, no, no, no!” So Prabhupada said, “Okay, but at least once a week they must go swimming.” So, it was very pleasant and joyful in Hawaii. But Prabhupada regularly reminded us that even though we were in a heavenly place, we were still in the material world, and that we needed to pay attention to our service and not get distracted by heavenly pleasures.
Source: Remembrances by Sidhanta Das – Folio Vedabase