Late afternoon, early evening -- right after a day at the pool, drop off your stuff in the room and go back down to the hammocks, if you are staying at Hyatt Regency Hotel in Kauai. If you aren't, that's okay, find a quiet romantic location, like maybe hanging out on your balcony or in the chaise lounge chairs of your pool, whatever.
You can enjoy a relaxing moment taking in the day's activities while your swinging on the hammock or enjoying the view.
Take time to smell the ocean air! Don't rush moments like this, this is what you will remember when you get back home.