Marine Corps Base Hawaii (M-C-B-H) Kaneohe Bay is located on the northeastern coast of Oahu, Hawaii. The climate in this area is classified as tropical, with warm temperatures throughout the year. The average high temperature ranges from 80°F (27°C) in winter to 87°F (31°C) in summer, while the average low temperature varies from 66°F (19°C) in winter to 73°F (23°C) in summer. Precipitation is abundant, with an average annual rainfall of 49 inches, primarily occurring from November to March.

The hydrology constituents of Kaneohe Bay are diverse and include coral reefs, seagrass beds, and several fish species. The bay is also home to endangered Hawaiian green sea turtles and various marine mammals.

Outdoor recreation opportunities at M-C-B-H Kaneohe Bay are plentiful. The base offers various water activities, including swimming, snorkeling, scuba diving, and kayaking, allowing visitors to explore the vibrant marine life. Additionally, the base has well-maintained hiking trails that provide opportunities for scenic walks and beautiful views. Golf enthusiasts can also enjoy the Klipper Golf Course, an 18-hole course with stunning ocean vistas. Overall, M-C-B-H Kaneohe Bay offers a picturesque setting with a wide range of outdoor activities for visitors to enjoy.