A seal and two dolphins were spotted in Melbourne’s Yarra River on Monday, August 13, frolicking in the brown water near the Webb pedestrian bridge.

In this video, uploaded by What’s On Melbourne, the three are seen surfacing near each other.

Commenters on the post joked that the animals might grow an extra flipper or a third eye from swimming in the city’s murky river. Others suggested the animals might have escaped from the Sea Life Aquarium nearby. Credit: Melbourne City Marina via Storyful