There are several small pubs in Exmouth where it's possible to have a beer or many.
The Potshot Hotel holds a Friday-night disco in its "Bamboo-bar," which is lovingly known as the "Bimbo-bar" by the locals. This is the only night when anything happens in Exmouth, so you'll find everyone here usually on the far end of the intoxication spectrum. For this reason it is also highly advisable not to book any dive tours on Saturday mornings tour operators will often run late, wobble and complain about mysterious headaches and food poisoning.