corumbá lake — caldas novas
Lake of the Corumbá I hydroelectric plant, next to the thermal waters of Caldas Novas. Peacock bass in the submerged timber and rocks, trahira and tilapia along the shores.
Corumbá Lake was formed by the Corumbá I dam on the Corumbá River, a few kilometers from the thermal-spring hotels of Caldas Novas, a city that receives millions of tourists a year. It has indented shores with submerged timber and logs, rocky ledges, islands and the bay of the Piracanjuba River. Peacock bass is the target for casting at dawn and late afternoon; trahira stay along the edges of the structures and tilapia are caught on bottom fishing. Boats and jet skis crowd the lake on holidays, and there are records of piranha attacks on bathers.
best season
Dry season, May to October; during the rains from December to March the water turns murky. During the spawning closure (Nov 1 to Feb 28), only catch and release in the reservoir.
Local rules: There are records of piranha attacks on bathers in the lake (more than 30 in two years, according to firefighters in 2015): avoid getting into the water and take care when boarding and leaving the boat. In Goiás, a state license is required, and a zero transport limit applies for 4 years from May 28, 2026 (IN Semad 17/2026): native fish may be kept only for eating on site, up to 5 kg per angler and within the size limits; threatened species may not be caught, and chumming with feed or cracked corn is banned. During the spawning closure (Nov 1 to Feb 28), Goiás allows sport fishing only in reservoirs, catch and release with barbless hooks, and the federal rule for the Paraná basin limits fishing in reservoirs to non-native species and bans fishing within 1,500 m of the dam (IN Ibama 25/2009). Check local rules.
- getting there
- About 150 km from Goiânia. Caldas Novas has a regional airport.
- facilities
- Marinas with boat ramps, boat rentals and fishing guides on the lake; a wide network of hotels, inns and clubs in Caldas Novas.
- basin
- Paraná
tip
In the submerged timber, use a heavier leader and an offset-hook lure so it doesn't snag. Peacock bass rise to the surface in the early hours and late afternoon.
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Each card shows the day's index (0 to 100) and, below it, a strip with the index for each hour, from 0h to 23h. from poor to excellent.
what you can catch here
sources and references
Access, facilities and season information changes: check with the lodge, a local guide or the city hall before you travel.
- market iscabox — Represa de Corumbá (GO): guia de pescaSpecies, structures and access; check with local guides
- press O Imparcial — Mais um turista atacado por piranhas no Lago Corumbá; em 2 anos, 30 casosJune 2015: firefighters recommend touring the lake by boat only
- official Casa Civil de Goiás — Instrução Normativa Semad nº 17/2026 (defeso e cota zero de transporte)State license, zero transport limit, closed season Nov 1 to Feb 28 and ban on chumming in Goiás
- official Ibama — Defesos continentaisSpawning closure (piracema) in the Paraná basin (IN Ibama 25/2009)