NBM Dive Site Resource
I-1 Submarine Wreck
Tambea, Guadalcanal Province, Solomon Islands
The remains of Japanese submarine I-1 lie on the reef near Tambea, Guadalcanal, and are visited on guided dives.
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Featured Hero Photograph
Aquatic life at this dive site
What divers may encounter
Three reviewed connections are featured here. Sightings vary by season, conditions, and chance, so they are never guaranteed.
Aquatic life research in progress
NBM is reviewing a likely local species for this position.
Aquatic life research in progress
NBM is reviewing a likely local species for this position.
Aquatic life research in progress
NBM is reviewing a likely local species for this position.
Site media
Photographs
Three views rotate from the published gallery on each visit.
Contributor media
Dive videos
Three featured video positions are reserved on every profile.Published reference location
Location map
The marker shows the public coordinates associated with this profile. Confirm current access, moorings, and departure details before the dive.Map data © OpenStreetMap contributors
Recent field observations
Diver-reported temperatures
Automatically checked observations from dives during the past 14 days. Three reports are visible at a time; scroll for more.A report that passes the automatic checks will appear here with the dive date, diver’s display name, and temperatures at each depth.
Reports are automatically checked for plausible dates, depths, and temperatures. They are observations, not forecasts; confirm conditions before diving.
Why divers know this place
Highlights
Shallow wartime submarine remains, marine life, and the story of the Kiwi and Moa action.
Shipwreck-only module
The wreck
This section appears only on shipwreck records and brings the vessel, its loss, present condition, access, and responsible wreck-diving considerations into one place.
- Vessel type
- Imperial Japanese Navy cruiser submarine
- Year sunk
- 1943
Plan the trip
Dive boats that visit this wreck
Operator lists I-1 among its Honiara dive sites and offers guided day-boat trips. Confirm the particular I-1 departure; sites are selected for conditions and experience.
Open boat profile →Honiara, GuadalcanalSolomons Master LiveaboardMaster LiveaboardsSolomons Master WWII Wreck Week has documented I-1 dives. The specific wreck depends on the departure, weather and trip plan; confirm I-1 before booking.
Open boat profile →Before you arrive
Access notes
Approximate Tambea/Kamimbo Bay orientation point, not a navigation coordinate. Arrange access and current conditions locally.
Plan within your training
Conditions and hazards
Fragile war wreck; do not enter, disturb, or remove artifacts. Check currents and surf with local guides.
Independent resource notice
This record is a starting point for independent verification. Access, closures, moorings, weather, currents, depth, visibility, operator availability, and site conditions can change without notice. Confirm current information with the responsible operator, property owner, managing authority, or another qualified local source before planning or attempting a dive.