In the Tohoku area of northern Japan, Okama Crater Lake, also called Goshiki Numa, is a magnificent treasure that captivates visitors. It is proudly situated within the crater of Mount Zao. This serene body of water, surrounded by the protective embrace of the Zao volcanic complex, boasts an ever-changing palette of colors, dancing gracefully in response to mineral shifts and atmospheric whims. Despite its origins rooted in past volcanic eruptions, the lake now slumbers peacefully, starkly contrasting the fiery spirit of Mount Okama, the region’s most active volcano. Zao Quasi-National Park, home to this enchanting lake, is a haven for hikers and nature enthusiasts. This park, which is separated into three unique areas called Zao North, Zao Middle, and Zao South, invites travelers to discover its varied landscapes and breathtaking natural features. While direct access to Okama Crater Lake is limited, the brave can journey to the crater’s edge.
In contrast, others marvel at its beauty from above, soaring high on a skylift from a bird’s-eye perspective. The lake’s high sulfuric acid content lends it an otherworldly aura, devoid of plant life or aquatic creatures, with caution advised due to the toxic emissions from nearby fumaroles. As the lake shimmers in a kaleidoscope of hues, reflecting the changing seasons and weather patterns, visitors are reminded of its namesake, ‘tea kettle,’ a homage to its petite yet mesmerizing presence within the caldera. Measuring just 20 acres in surface area, the lake’s depths still need to be solved, with conflicting reports on its true dimensions. Winter blankets the region in a snowy embrace, transforming Mount Okama into a premier destination for winter sports and leisure activities for thrill-seekers and snow enthusiasts alike. Venturing beyond the park’s confines reveals a world of cultural and natural wonders, with secondary peaks like Jizo-san and the Zao Sanroku Ropeway offering glimpses into the region’s spiritual and recreational offerings. Winter’s whimsical’snow creatures’ bring a magical touch to the scenery, enticing tourists to see nature’s creative energy in action.
Meanwhile, the tranquil town of Zao Onsen at the mountain’s base invites weary travelers to soak in its healing waters, an oasis of relaxation and rejuvenation. To access Okama Crater Lake and its neighboring resorts, travelers can embark on a scenic drive along the Zao Echo Line, a route designed to showcase the beauty of the Mount Zao range in all its glory. Along the way, stops such as the Akiu Great Falls beckon with their majestic cascades and lush botanical gardens, offering a taste of nature’s grandeur before reaching the ethereal beauty of Okama Crater Lake. For those seeking a more leisurely journey, a bus ride from Yamagata City provides a hassle-free route to Zao Onsen, where the Zao Sanroku Ropeway offers a panoramic view of the breathtaking landscape. Embracing a visit to Okama Crater Lake as part of a larger exploration of northern Japan unveils a tapestry of delights, from Yamagata City’s culinary treasures to the historical wonders scattered throughout the prefecture. With its abundant natural parks and outdoor pursuits, Yamagata Prefecture beckons to adventurers and nature lovers alike, offering a blend of tranquility and excitement waiting to be discovered. So, take the chance to witness the five colors of Okama Crater Lake and add this captivating destination to your travel itinerary.*Certain statistical details mentioned may vary between sources, primarily sourced from a 1988 scientific study.