This weekend we will take the zodiac and visit a glacial moraine near tiny Gåshallan island (http://www.gashallan.fi/fi/content/kuvagalleria). The dive site reminds me of a Zen garden: the bottom is white sand shaped into even waves of 1" ridges that look exactly as though it has been painstakingly raked. The moraine is hundreds of rocks 3-5m in diameter (the Brits would say "BLOODY big"), some alone in the sand and some piled on top of each other so that you can dive in, under and around the crazy formations of giant stones. It's no giant's causeway but it's pretty neat. Depths suitable for beginners.