Time Out says
South of Clovelly Beach and north of Coogee Beach, Gordon's Bay is a secluded location is created by the deeply incised gully and sheer sandstone headlands and make it a great spot for snorkelling. On a clear day, take your own mask and snorkel and follow the underwater nature trail – there’s a series of steel plaques attached to concrete drums (linked together by a chain) with information about the local sea life. On your self-guided adventure, you’ll likely spot starfish, sea urchins, cuttlefish and blue gropers. The trail is 600 metres long and takes around 40 minutes to complete.