tdisdi.asia · Technical Training
Technical site description, access, depth, facilities, and visibility.
Dive Spot Guide•
Song Hong
Song Hong is a freshwater sinkhole for technical cave diving.
Plan a car-accessed technical dive with shallow cavern zones, full overhead passages, and self-sufficient logistics.
About Song Hong
Song Hong is a freshwater sinkhole in southern Thailand with a steep basin, cavern-style lines, and full overhead passages below the shallow area. It is a technical cave site rather than a recreational open-water dive, and the deeper sections quickly become serious decompression territory. Access is remote and self-sufficient, which makes it suitable for trained teams that can manage gas, lighting, and cave procedures.
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Research Estimate At Song Hong
Conservative baseline from public research. No community dives logged yet.
VisibilityVisibility: 8m
AccessChallenging entry effort
Aquatic LifeSome life
FacilitiesNo facilities
CurrentLight current
SurgeFlat calm
Where Is Song Hong?
This spotNearby spotsExplore nearby spots on the map
Community sourced coordinates.
Song Hong Planning Details
Depth range, seasonality, and planning context.
Reported Depth
0m - 198m
Depth Note
Permanent cavern lines sit in the 6-30 m range, while the sinkhole system reaches about 198 m and transitions quickly into full overhead sections.
Best Season
Year-round, with easier travel in the dry season.
Typical Conditions
Warm freshwater with variable shallow visibility, clearer water at depth, and full overhead conditions below the cavern zone.
Safety & Access At Song Hong
Site conditions, restrictions, and access requirements.
Site Conditions
Overhead environmentRestricted access
Safety Notes
Use full cave protocols, redundant lights, disciplined gas planning, and appropriate decompression procedures; this is not a recreational dive site.
Access Restrictions
Pay-to-access technical site with remote logistics and no on-site support. Appropriate cave or trimix training is required for deeper work.
Legal Notes
Confirm operator permission, training prerequisites, and access arrangements before traveling.
Local Intel For Song Hong
Community notes to help plan your visit.
Scuba Diving
The shallow basin can support cavern-style work, but the site is built for technical cave diving, staged gas, and long decompression planning.
Freediving
Not a realistic recreational freedive site. Only very controlled shallow training would make sense, and even that would need careful supervision.
Snorkeling
Not a snorkel site for normal use. The hazard profile and depth make it unsuitable for casual surface-only visits.
Wildlife at Song Hong
Species commonly reported at this site, with direct links into their wildlife guides.
Recent Logged Visits At Song Hong
Community dive logs and visit reports for this site.
Dive Spot Log Averages At Song Hong
Average conditions based on logged dives & visits.
Conditions
Avg. Visibility8m
Activity
No dive activity logged yet.
