Giants Castle
Location guideTofo

Giants Castle

2235 madvanced+large pelagicscoral○ Out of season

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Hotels, dive operators, gear, and how to get here are on the Tofo location page.

Overview

Deep reef pinnacle northeast of Tofo Beach famous as a smalleye stingray aggregation site — the world's largest sting ray, almost endemic to this stretch of Mozambique coast. Bull sharks and big groupers patrol the outer wall.

What you'll see

4 species curated
  • Smalleye stingray
    year-round
  • Bull shark
    seasonal
  • Potato bass
    year-round
  • Honeycomb moray
    year-round

Sightings evidence

1 record on file
  • Smalleye stingray
    high confidence
    Last confirmed
    Apr 2026
    Recent records
    130 within 10 km
Sources & methodology

How we summarise this

We aggregate confirmed occurrence records from GBIF and OBIS within a fixed radius of each dive site. Occurrence records confirm presence and reveal seasonality clustering, but they DO NOT measure per-dive probability — there is no eligible-effort denominator. We deliberately do not publish a numeric '% chance of sighting' from this data.

Sources

Conditions

MonthWaterVisibilityCurrent
Jan2628 °C1525 mmoderate
Feb2628 °C1525 mmoderate
Mar2628 °C1525 mmoderate
Apr2527 °C1525 mmoderate
May2325 °C1525 mmoderate
Jun2224 °C1020 mmoderate
Jul2123 °C1020 mmoderate
Aug2123 °C1020 mmoderate
Sep2224 °C1525 mmoderate
Oct2426 °C1525 mmoderate
Nov2527 °C1525 mmoderate
Dec2628 °C1525 mmoderate

Season calendar

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

Peak season highlighted · current month outlined

Gear for this site

Beyond the basic kit
  • 5mm wetsuitWinter dives sit at 21-22C — tropical suit insufficient.
  • ComputerDeep multi-level dive — proper computer required.

Next step

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