[Empty-handed OK] Photos included! Enjoy the warm waters of Lake Shikotsu with bathing, snorkeling, and Morge MAX all year round! Towels and amenities are free! Recommended for couples too.

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• ★Don't worry, even if you can't swim! An instructor will be on hand! ★The heating room is heated using thinned wood from Lake Shikotsu. ♪ ★Rash guard leggings (women's swimsuit, men's shorts), bath towels, and ponchos are all included for free rental. ♪ Plan Description ★The heating room tent is made by MORZH, known as the world's hottest! ★Snorkel in Lake Shikotsu, which has the best water quality in Japan for 10 consecutive years, warm up your body in the heating room, bathe, and relax. [Experience Time] Approximately 2:00 AM from start to finish (approximately 1 hour for 30 minutes before and after changing clothes, snorkeling, heating room, bathing, and resting). Spring Water Temperature: March-May: 4°C-7°C; June: 7°C-10°C. With the arrival of early summer in early May, fish return to the shore. March-June offers exceptional water clarity, creating a beautiful contrast with Mount Fuppushi and Mount Tarumae. Summer Water Temperature: July 10-15°C, August-September 15-20°C. July to September sees the blooming of the endangered underwater flower, Chitose Baikamo, and Lake Shikotsu's peak season begins. The beautiful swaying of the aquatic plants creates a mystical atmosphere. Underwater, you can see the blue-hued three-spined sticklebacks and Hokkaido dace, both of which are mating colors. Autumn Water Temperature: October 15-18°C, November 10-15°C. From October to November, the kokanee salmon, mating colors, return to the shore to spawn. The leaves also begin to change from green to red and yellow, and even the fallen leaves add a vibrant color to the underwater scenery. Midwinter Water Temperature: December 7-10°C, January-February 0-4°C, December-February Plankton in the water decreases, transparency increases, and the water becomes even more tranquil. Visibility increases to the point where you can see 30 meters ahead. The sunlight shining in casts a warm glow on the water, which is at 2°C. The Ice Museum Hyoto Festival, one of Hokkaido's three major winter festivals, is held from late January to mid-February. Because the lake uses highly transparent water, the ice sculptures sparkle in the blue of Lake Shikotsu during the day, and at night they are lit up and fireworks are launched, making it a sight to behold.
• You can enjoy the underwater scenery and landscapes of each season.
• In spring, the snow begins to melt and new water flows into Lake Shikotsu. The water becomes more transparent than 30 meters, and fish return to the shore. In summer, the white flowers of the Chitose Baikamo, a natural monument, and aquatic plants grow, and at times schools of as many as 1,000 fish can be seen. In autumn, the kokanee salmon begin to spawn, and you can see them in their nuptial colors. Winter is the season when the water is exceptionally clear, and it is sometimes possible to see down to 30 meters below.