The main attractions are definitely the reef and water based activities (fishing, snorkelling, diving, boating). Whales will still be around and the lighthouse lookout at sunset is a great spot to go. The snorkelling beaches are around in the national park ~45 minutes from town. There are also nice creeks/gorges near town and in the national park. There are nice swimming beaches in/near town.
See tours available on visitor centre website:
See attractions on visitor centre website:
There are 3 companies that hire boats in Exmouth. Visit the links below to view: