Odysseus's usual activity during the day on Calypso's island is not as much fun as a person ought to have on a beach on a beautiful island. Instead of having fun, he typically sits there all day, looking out to sea and crying. He does this because he wants to leave the island and make his way home, but he cannot.
You can find this in Book V. It is in the part after Mercury comes and tells Calypso that she has to let Odysseus go (Zeus has said she has to). She goes to tell Odysseus the news and finds him crying like usual.
As for the day time, he
spent it on the rocks and on the sea shore, weeping, crying
aloud for his despair, and always looking out upon the sea.