Subaru Telescope

Subaru Telescope is an astronomical observatory on Maunakea, reached by road from Hilo. A guided visit can take you inside the building and close to the telescope, with views from above and below the instrument and a walk around its catwalk. Guides lead tours in English and Japanese, and explain the technology used for astronomical research, including the search for Planet Nine. The summit is about 14,000 feet above sea level, so plan for cold, thin-air conditions and check road access before setting out.

What you can see on a tour

A guided visit brings you close to the Subaru Telescope and its advanced equipment. The tour includes views from above and below the telescope, as well as a walk around the catwalk. Guides lead tours in English and Japanese, making it possible to ask questions about the observatory and its technology.

The telescope is used in astronomical research, including the search for Planet Nine. Its wide field of view and light-gathering capability suit deep, wide-field surveys.

Prepare for the summit

The observatory sits at about 14,000 feet, where the low oxygen pressure can affect how you feel. Drink water, follow the staff’s advice and tell someone promptly if you become headachy, sick or otherwise unwell.

Conditions can be cold, particularly around sunset, so bring warm layers. Check the road status before travelling, since access to the summit can close. Book ahead, but keep another activity in your plans in case a tour is cancelled.