Rio Macahuam
Conditions & tides
Scored by DiveConnect's site-physics model
Marine forecast via Copernicus Marine. Score is a rule-based guide from swell/wind vs. the site's exposure — always dive your own assessment.
Dived here today? How were conditions vs. what we showed?
About this site
Rio Macahuam lies near Paraty on Rio de Janeiro's Costa Verde, a stretch of coastline where forested mountains meet the waters of Ilha Grande Bay. The name points to a site near a river mouth close to town, in an area better known for its bay islands and colonial harbor than for offshore diving. Divers here have reported black sea urchins, horse-eye jacks, ten-ray star coral, and white sea stars.
Marine life here
Confirmed by our research team, reported by independent divers, or observed nearby via iNaturalist — each entry is labelled with its source.
Ten-Ray Star CoralMadracis decactisReported here · unconfirmed
White Sea StarCoscinasterias tenuispinaReported here · unconfirmed
Black sea urchinArbacia lixulaReported here · unconfirmed
Horse-eye JackCaranx latusReported here · unconfirmed
Durable tips from divers — access, hazards, marine life, facilities. For day-of conditions, use the report tool in the conditions card above.
No notes yet. Dived here? Be the first to leave a tip.
Share a write-up or a photo. Submissions are reviewed before they appear on the page.
Nearby dive sites
Shops that dive here
No shops have listed this site yet.