There’s something massive in the water.

Animal expert Jeff Corwin found what might be the world’s biggest stingray in Thailand’s Mae Klong River.

The 14-foot long and 8-foot wide freshwater ray could be the largest freshwater fish ever captured, Corwin said on Facebook.

The giant creature weighs an estimated 700 to 800 pounds, National Geographic reported. That means it would beat out the current record, a Mekong giant catfish that weighs 660 pounds and also live in Thailand.

The catch was filmed for an episode of Corwin’s “Ocean Mysteries.” The nature team measured and microchipped the ray for tracking, and then they released it back into the river.