腎上腺浮潛與潛水（Adrenalin Snorkel and Dive）是湯斯維爾（Townsville）歷史最悠久的潛水訓練與海洋旅遊業者，專門提供浮潛與潛水行程，而完整的潛水服務還包括潛水訓練。 在各項服務上，他們盡全力超越旅客的期望。 潛水探索永嘉拉號（SS Yongala）沈船殘骸，並且在大堡礁外圍浮潛與潛水。 不潛水的旅客也能在大堡礁外圍觀光。
永嘉拉號（SS Yongala）是全世界最佳潛水地點之一。 永嘉拉號（SS Yongala）位於大堡礁海洋公園（Great Barrier Reef Marine Park）之內，已列為國家歷史遺跡。 在海面下 14 公尺的地方就能見到沉船；整艘船靜靜躺在海面下 28 公尺的沙質海床。 工藝品、海洋生物和各種珊瑚覆蓋住整個殘骸，形成壯觀景象。
「腎上腺浮潛與潛水（Adrenalin Snorkel and Dive）」致力於保護自然環境。 所有旅行都通過「澳洲生態旅遊（ECO Tourism Australia）」認證。 通過認證的業者除了強調環境永續的精神，還身負教育推廣的責任。
The S.S. Yongala sank during a cyclone in 1911 with the loss of more than 120 souls. It frequently rates as one of the ten best dives in the world. The wreck begins 15 metres below the surface and extends to a depth to 29 metres.
The Yongala is most famous for the abundant marine life. It is often said that you will see more marine life on one dive on the Yongala Wreck than you will on half a dozen dives on the reef. The wreck is covered in hard and soft corals. During the winter months, the calls of the migrating whales can be heard and occasionally seen around the wreck.
The Yongala Wreck is a 'must do' on your list of dive sites in Australia.
The Outer Barrier Reef is rated as one of the premier snorkelling and dive sites in the Great Barrier Reef Marine Park. This reef has many shallow areas well suited to snorkelling and introductory diving, as well as deep bommies and swim-throughs for the experienced divers.
Sites such as Student Bommies with a maximum depth of 12 metres have a sandy bottom, excellent coral cover and a diverse array of marine life. Shark Alley is renowned for sightings of black tip and white tip reef sharks, grey reef whaler sharks, giant trevally, and pygmy manta rays (October to December).
Lodestone Reef is an excellent location for diving with large schools of pelagic species, as well as macro species such as the ghost pipe fish.
The absolute best way to see the Great Barrier Reef and the SS Yongala is to live there. See the stunning array of wild life waking up to an explosion of colour and activity. Dive and snorkel into the evening as daylight softly moves to dusk. Be a part of the reef settling down for the night as the last rays of sunlight bathe Wheeler Reef's beautiful coral cay.
The scene is set - three whole days of diving and snorkelling two of the wondrous pearls that go to make up the exquisite necklace that is the Great Barrier Reef. Enjoy diving or snorkelling on some of the most pristine reefs within the Great Barrier Reef Marine Park. Experience unlimited visibility at Wheeler and Davies Reef.
On the last day wake up to dive on one of the world's best wrecks, the SS Yongala. You will witness the feeding frenzy before breakfast then see the daylight marine life emerge after your surface interval. This site is deffinitely not one to miss, and is a must do for all divers!