Why People Call Me Captain Sim
Captain Sim Yong Wah — often simply called Capt. Sim by friends and divers — is a pioneering figure in Malaysia’s diving history and one of the country’s earliest professional scuba educators.
Pioneer of Malaysian Diving
- In 1980, he became the first professionally qualified PADI Open Water SCUBA Instructor in Malaysia, certified under Professional Association of Diving Instructors (PADI).
- He opened Malaysia’s first dive school and dive shop, Sea Divers, in Kuala Lumpur.
- Two years later, he established his own business, Simsports, further developing the local dive scene.
Discoverer of Sipadan as a Dive Destination
- Capt. Sim was the first person to explore the underwater environment of Sipadan Island as a dive location.
- He encouraged Ron Holland of Borneo Divers to begin dive trips there.
- Ron later guided Jacques Cousteau to Sipadan, whose documentary helped popularize the island globally — but it was Capt. Sim who first recognized its diving potential.Today, Sipadan is widely regarded as one of the world’s top dive sites.
Aviation Career
- In 1988, Capt. Sim made the difficult decision to leave the diving business to focus on his primary profession as an airline pilot with Malaysia Airlines.
Author
- In 1992, he published a coffee table book titled
Malaysia’s Undersea Heritage, documenting diveable locations across both West and East Malaysia — a significant historical record of the country’s underwater world.
Capt. Sim Yong Wah’s legacy lies in:
Captain Sim’s Oculus House
Captain Sim Yong Wah’s Oculus House is not just a residence — it is a design statement and a living ecosystem.
Located in a forested setting in Malaysia, the house is architecturally conceived to integrate nature directly into daily living. The surrounding greenery is not treated as landscaping, but as part of the home’s spatial experience. The design received the Best Design Award from the Malaysian Institute of Architects (Pertubuhan Akitek Malaysia), recognizing its innovative relationship with environment and structure.
- Vegetables and fruits grown within the property
- Free-range chickens
- A swim pond that also supports fish
- Outdoor gathering spaces used for photography viewings and post-travel celebrations
It reflects Capt. Sim’s philosophy of self-sufficiency, sustainability, and appreciation for nature — similar in spirit to how he once explored untouched underwater worlds.
Gardening Activities
- At Oculus House, gardening is both practical and experimental.Captain Sim grows:
- Sugarcane, including silk sugarcane
- Melons
- Herbs such as basil
- Ulam Raja (Cosmos caudatus)
- A mature Kaffir lime (Citrus hystrix) treeThe garden supports fresh cooking during gatherings with close friends — especially after travel photography trips. Produce harvested from the garden often becomes part of shared meals accompanied by good wine and storytelling.
Hydroponics System
- Captain Sim also operates a hydroponic system, primarily for melon cultivation.The system allows:
- Precise nutrient control
- Efficient water usage
- Cleaner fruit production
- Year-round growing capabilityGiven Malaysia’s tropical climate, hydroponics provides consistency and protection from soil-borne pests and excessive rainfall. The combination of traditional soil planting (sugarcane, herbs, citrus) and controlled hydroponic production reflects a thoughtful balance between nature and technology.
Philosophy Behind It All
- Oculus House represents:
- A continuation of exploration — now above water
- Self-reliance and food sustainability
- A lifestyle centered on nature, community, and designWhere Captain Sim once mapped underwater frontiers, he now cultivates a living landscape at home — blending architecture, agriculture, and hospitality into one coherent environment.If you like, I can also outline a long-term planting strategy tailored specifically for Oculus House’s microclimate and layout.