Scuba diving, doesn't matter when or where. Escaping to a world where there is no human contact except your buddy and you. No phone calls/texts/e-mails/ car horns/ screaming kids/ tv/ and many other things. Just marine life and serenity.
Swimming in a pool on a day weather is perfect:) Your weightless you can float the water is warm you can move and do anything.Then get on the deck let sun get you hot again jump in .Sip ice cold water.Nice nice day:)