One of my best trips of all time was 2 weeks kayaking the Apostle Islands, about 10 years ago. Some days the water was still as silk, reflecting the sky so clearly it was like paddling through clouds, only disturbed by my own movements. On calm nights the water was lit up by the stars above so we'd paddle out and just become absorbed by it. Other days it was treacherous, waves reaching well above my head, hot sun beaming down on my right side while ice cold water splashed up on my left. Overall it was an incredible experience, I hope to go back some day with a proper boat.