scubaseason

Whale Shark

Rhincodon typus

Sighting evidence at South Reef, Redang Island

Whale Shark

Photo: Simon Pierce · CC BY-NC

Whale sharks visit South Reef annually between June and August, drawn by plankton blooms associated with the South China Sea's inter-monsoon upwellings. Redang's whale sharks are typically juveniles measuring three to seven metres, smaller and more manoeuvrable than the large adults seen at oceanic aggregation sites. Each encounter is treated as a snorkel-only event by responsible operators to minimise disturbance, as these IUCN-endangered animals are highly sensitive to boat noise and physical contact.

Evidence at this site

No confirmed records on file at this site

Whale Shark is listed as a curated species here based on historical reports.

How is this calculated?

Sighting evidence is compiled from iNaturalist observation records within a set proximity radius, filtered for quality-grade observations. “Last confirmed” is the date of the most recent research-grade record. Record count covers a rolling 24-month window. Confidence reflects record count, recency, and consistency of seasonal signal.

Also seen at other sites