
Nishiizu Glamping Tenkuuterrace
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6.4 km away as the crow flies
Dive centre · Numazu · Japan
4.817 Google reviewsDive the diverse waters of Osezaki with an instructor bringing 35 years of experience to the Numazu coast.

Sea King is situated in the Osezaki area of Numazu, Shizuoka. The centre provides a dedicated space for both beginner divers looking for their first experience in the water and experienced divers seeking recreational exploration of the local reefs.
The centre is led by an instructor with 35 years of experience. This long-standing expertise is reflected in the teaching approach, which focuses on a gentle, pedagogical method particularly suited for those undertaking their first dives.
Services provided include introductory dives, recreational diving, and formal certification courses. The team is geared towards supporting divers through every stage of their training and exploration.
Sea King offers a complete range of training, from introductory dives for beginners to full certification courses. Whether you are looking to start your journey or progress through established diving levels, the instructor's experience supports a structured learning environment.
The shore facilities are designed to handle the practical requirements of a diving trip. There is a spacious area dedicated to washing equipment, alongside a sunny drying zone to ensure your kit is ready for the next outing.
A relaxation area is available for divers between dives, featuring a lounge with sofas and a room with views of the sea. For a more immersive experience, the centre also provides an outdoor bath with panoramic ocean views.
Osezaki is the primary site for the area, offering a variety of environments for all levels. A notable feature of this site is a thermocline located at approximately 15 metres, which can provide a distinct change in water conditions for divers.
The marine life at Osezaki is diverse, with many species inhabiting the various depths. You can find a variety of molluscs and crustaceans, including several types of sea snails such as the Furisodemidorigai and Gokurakumidorigai, alongside the Aki-anago.
Macro life and smaller inhabitants are frequent sightings for those observing the reef closely. Divers often encounter the Nagisanotsuyugai, the Tatsunoitoko, and the Kihassoku, providing plenty of interest for those with an eye for detail.
The local ecosystem also supports various fish species, including the juvenile Akataamagashira and the Semihoubou. Other notable residents include the Ooumiuma and the Hirenaganajirinbou.
The marine environment in this area can be influenced by the open sea, which may present a slightly elevated swell. Divers should also be aware of the thermocline at Osezaki, which occurs around 15 metres.
It is important to note that diving is prohibited on the morning of 4 April due to the local Ose festival.
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