Scuba Season

Whale shark

Rhincodon typus

Sighting evidence at Chole Bay Reef

Whale shark

Photo: Simon Pierce · CC BY-NC

Mafia Island hosts one of East Africa's most consistent whale shark aggregations, with individuals returning to the bay year after year. The shallow protected waters allow extended surface snorkel and sub-surface encounters. Photo-ID research by the Marine Megafauna Foundation has tracked hundreds of individuals here.

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.

Seasonality

Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
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