The Blue Pond, known locally as Aoike, is a small yet captivating natural wonder located within the Juniko (Twelve Lakes) area of Aomori Prefecture. Its striking, almost unnatural blue hue, often described as sapphire or ink-like, is a result of unique mineral compositions and the absence of algae, making it a truly distinctive sight. Formed by an earthquake and landslides in 1704, it's one of many small lakes in the region, but stands out for its vibrant color and mysterious allure.
Visitors consistently praise the pond's beauty and its photogenic qualities, noting that it's a highlight for nature lovers. Many find the atmosphere serene and peaceful, even on rainy days or when tour buses are present. The clarity of the water, allowing glimpses of submerged logs and fish, adds to its charm. However, some reviewers caution that the blue might not always be as intense as depicted in brochures, depending on lighting and weather conditions. The pond is relatively small, and while beautiful, some visitors feel it might be slightly overrated if viewed in isolation from the surrounding Juniko area.
To make the most of your visit, consider arriving early in the morning, ideally before 9 AM, as some visitors report free parking before the official lot opens. The walk from the parking area or bus stop to the pond takes about 5-10 minutes, involving a gentle uphill and downhill path with stairs, so comfortable walking shoes are recommended. It can be cooler in the forest, even in summer, so bringing an extra layer of clothing is advisable. Mosquitoes can be an issue, especially in warmer months, so insect repellent is a good idea. While the Blue Pond itself is small, many recommend exploring the surrounding Juniko area, which offers other beautiful lakes and scenic walks. Don't expect extensive facilities; the focus here is on natural beauty.
The Blue Pond is accessible from the "Oku-Juniko Parking Lot" bus stop, which is about a 5-minute walk away. For those driving, easy parking spots are available, though fees may apply later in the day. The pond is part of the wider Juniko area, which is best explored by car or local bus services that connect the various lakes. The area is somewhat remote, so planning your transportation in advance is crucial.
A common complaint is that the blue color may not always live up to expectations, especially on overcast days or during certain seasons like winter when it might appear as a frozen block of bluish ice. To mitigate this, aim for clear, sunny days to experience the most vibrant blue. Also, manage expectations regarding its size; it is a pond, not a large lake, and its appeal lies in its unique color rather than grand scale.

