【Ogasawara Islands】Enjoy the Bonin Blue Sea at Nagasaki Observatory, Chichijima’s Scenic Gem!

【Ogasawara Islands】Enjoy the Bonin Blue Sea at Nagasaki Observatory, Chichijima’s Scenic Gem! Sightseeing & Leisure
Sightseeing & Leisure

Must-Visit Scenic Spots on Chichijima Island, Ogasawara Islands

The Ogasawara Islands, a registered World Natural Heritage site. Chichijima, its gateway island, is dotted with numerous observation points offering views of abundant nature and crystal-clear seas. Among them, ‘Nagasaki Observatory’ is widely supported by both short-term and long-term visitors for its breathtaking scenery, despite being easily accessible.

From the Bonin Blue sea with its beautiful gradations to the magnificent natural terrain and even encounters with wild whales, this spot encapsulates the must-see highlights of Chichijima tourism. This article thoroughly explains everything from the observatory’s attractions and the local atmosphere to unique ways to enjoy it that only insiders know.

Nagasaki Observatory

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📍 Address: Asahiyama, Chichijima, Ogasawara Village, Tokyo 100-2101, Japan

Nagasaki Observatory is the first viewpoint you encounter when entering the main route, ‘Yoake Road,’ which runs through the mountains from Chichijima’s downtown area (Omura district). While many observatories on Chichijima require climbing steep mountain paths or cliffs, its greatest appeal is its excellent accessibility, being just a 1-minute walk from the parking space. Even those with less physical confidence can easily stand on the stunning cliff edge by visiting with a car or scooter.

Standing at the observatory, you’ll see the uninhabited ‘Anijima Island’ close by to the north, and below, the ‘Anijima Channel’ stretching between Chichijima and Anijima. The strong currents, flowing like a river with the tides, are truly spectacular. Looking further west, you can also overlook Futami Port, where ferries arrive and depart. What’s most captivating, however, is the color of the sea around the small beach below to your right. On clear, sunny days, the magnificent gradation of ‘Bonin Blue’ shines, transitioning from deep blue to sky blue, and the ever-changing sea never ceases to amaze.

Furthermore, from January to April, humpback whales visit the Ogasawara waters for breeding. Nagasaki Observatory is also suitable for land-based whale watching, and if you’re lucky, you might spot whales spouting or jumping. Below your feet, ‘pillow lava’ formed by submarine volcanic eruptions spreads out; climb a little onto the rocks, and you can truly feel the Earth’s dynamic history.

Tips for a Deeper Experience

The best time to visit to maximize Nagasaki Observatory’s potential is undoubtedly ‘from a sunny morning to early afternoon,’ when the sun’s light shines directly onto the sea from above. Many reviews mention that even if it was cloudy the day before, a magnificent Bonin Blue sea greeted them the next morning, truly showing how dramatically the sea’s expression changes ‘depending on the weather.’

Conversely, taking advantage of its east-facing terrain, visiting as an early morning ‘sunrise spot’ is also highly recommended. While it takes just under an hour to walk from the downtown Omura district, the experience of walking uphill on your own two feet in the refreshing air around 4 AM is exceptional. Note that the observatory has no facilities like restrooms or vending machines for drinks. If you plan a long stay or are walking, be sure to prepare drinks beforehand.

For the Fit: The Challenging Telegraph Hill Walking Trail to Stunning Views!

For active travelers, we highly recommend challenging yourself on the ‘Telegraph Hill Walking Trail,’ which extends along the ridge from the observatory. This trekking route, connecting from Miyanohama and Tsuri-hama to Nagasaki Observatory, is an insider’s deep course where you can feel the breath of nature.

However, don’t blindly trust the ‘straight-line distance of 2.7km’ mentioned on the signboard. The trail has severe ups and downs, especially the countless stairs ascending towards the observatory, which are so challenging that you might feel like giving up and turning back. Make sure to wear comfortable sneakers, not sandals, on your feet.

However, an extraordinary reward awaits beyond the hardship. The scenery from the rest stops along the way is breathtakingly beautiful, with unnamed beaches visible only from the walking trail spreading out below. Experience a special, panoramic view that differs from what you see from the observatory – a reward exclusively for those who endured the challenging walk.

Photo by yang wewe on Unsplash
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