The Hyper-Kamiokande (Hyper-K) is a next generation experiment based in Japan succeeding the Super-Kamiokande (Super-K) experiment which achieved the 2015 Nobel prize.  It will consists of two identical 260 kton water Cherenkov detectors, 20 times bigger than Super-K,  to cover particle physics to astronomy. 

The main goals are to solve important problems remaining in neutrino physics using J-PARC neutrino beam, and to detect Super Nova burst/relic neutrinos as well as to search for proton decay and dark matter. Hyper-K is indeed a multi-purpose experiment and telescope from precise measurements to new discoveries. 

If one of the detectors is located in Korea instead of the two in Japan, then the physics sensitivities will improve. World-class discoveries are expected and Korea will play a critical role by co-leading the experiment.  There are several good candidate sites in Korea to host a Hyper-K detector thanks to higher mountains to reduce spallation background and better quality of rocks to excavate than Japan. 

In this talk I will focus on the Hyper-K as a neutrino telescope which will run for 30 years or more.