Mauna Kea volcano in Hawaii

We explored the volcanic world of Big Island from various locations and initially moved to Hilo Quartier, as it is easy to get to the two volcanoes Mauna Loa and Mauna Kea. In our hotel we found a tsunami warning after an excursion and we quickly packed up the photo things to go to the coast - luckily the wave was only 1.80 m high, otherwise this recklessness might have been dear to us. The drive to Mauna Kea was difficult. But we wanted to see the observatory. The largest telescopes in the world are operated here under the name Mauna Kea Observatory, including the two Keck telescopes, the Subaru telescope, as well as the northern Gemini telescope and the James Clerk Maxwell telescope (Wikipedia).