My favourite thing apart from the weather was the incredibly colourful marine life.
I have never been to the Great Barrier Reef or done much snorkelling but I was completely stunned at the beauty and abundance of pretty colourful fish and coral.
Almost everything is expensive.
You won't need a lot of clothes, it's hot, extremely hot in the summer! You are likely to be uncomfortable in synthetic materials-forget the stockings.
Don't forget sunhat and sunglasses.
There is practically no night life (except a pub and a few restaurants), so you won't need your evening wear. There's one new hotel resort with a very nice bar/restaurant which may you may get refused entry to if you are TOO casually dressed, ie. Not just singlet, shorts and thongs or beachwear.
High heeled shoes may be uncomfortable in the heat. Loads of peolpe wear Crocs/Dawgs All available in the pharmacy and small supermarket.
Sunblock spf 30+ is essential. You'll definately want your best camera, an underwater one if possible, the reef is glorious. You'll need a snorkel and mask to see the reef, they are avilable for hire, but you might as well buy one if you want to go more than once.
There is a well stocked camping/fishing shop in the town.
If you intend to camp in the Cape Range National Park, be aware that there is NO WATER ON-SITE (there are 'bush toilets'), you have to bring your own, so you will need to have some large water containers and fill up in the town. Bring EVERYTHING you are likely to need. Exmouth is a tiny place with very few shops and is so remote almost everything costs more than in Perth.
Coral Bay: Snorkeling Ningaloo from Coral Bay
As with all of Ningaloo Reef, there are spots to visit all the way from Coral Bay to Exmouth. However if you are staying in Coral Bay there are ample opportunities within walking distance to snorkel.
There will be schools of fish, the occassional sharks and if you are lucky, a sting ray ray or two. (Manta rays are common along the coast, but you have to go outside of the breaker wall to see them)
Watch out for boats overhead because there are several snorkelling excursion boats, glass bottom boats and others that are inside the reef. The speed limit in the reef is slow and the drivers are accostomed to seeing swimmers, but caution is still advised. If you do not have snorkelling gear, there are a few places that sell and hire them.
Coral Bay: Jake's Hill
Less of a hill and more just a larger sand dune, Jake's Hill will only take you a few minutes to walk to.
Jake's Hill is named after the first to eternally rest here. The hill is now home to a half dozen of man's best friends and companions, the dogs of the town.
If your stay keeps you in Coral Bay for a few days, you will no doubt see several sunsets. The view from the top of Jake's Hill is high enough to let you watch the sun go down over the small town and the beach below.
Upon entry to Coral Bay, there is a small path that leads up and to the left. The path is ~100m opposite the Backpacker's Club Hostel.
The visitors centre.
The visitors centre in the Cape Range National park has many items of interest about the local area. There's a large range of information about flora and fauna including a reading room, displays and video shows.
The shop has a large range of gifts at reasonable prices and also sells drinks and ice-creams.
There is no air-con here, no-where to fill your waterbottle (unless you pay for bottled water) and only bush toilets.
There's often kangaroos just outside.
Open 9:00am to 3:45 pm