# Poseidon Cruises

> Poseidon Cruises is a premium Great Barrier Reef dive and snorkel tour operator based in Port Douglas, Queensland, Australia, and part of the Quicksilver Group. Poseidon operates a 24-metre purpose-built dive vessel carrying up to 89 passengers on full-day tours to three exclusive Agincourt Reef sites on the Outer Great Barrier Reef, approximately 70 km from Port Douglas. Tours are guided by expert marine biologists and include up to three dives daily (certified and introductory diving), guided snorkelling, premium equipment, and a tropical buffet lunch. Poseidon holds eco-certification for sustainable reef tourism. Phone +61 (07) 4087 2100.

## Tour Pages

- [Diving](https://poseidon-cruises.com.au/diving): World-class scuba diving at the Agincourt Reefs, 70 km from Port Douglas, with up to 3 dives daily. Certified and introductory diving available with expert guides.
- [Snorkelling](https://poseidon-cruises.com.au/snorkelling): Guided Great Barrier Reef snorkelling adventures from Port Douglas, including equipment, safety briefings, and in-water assistance.
- [Inclusions & Rates](https://poseidon-cruises.com.au/inclusions-rates): Great Barrier Reef diving and snorkelling prices, inclusions, and rates for Poseidon Cruises tours from Port Douglas.

## Reef Information

- [Great Barrier Reef Dive Sites](https://poseidon-cruises.com.au/great-barrier-reef): Poseidon's Agincourt Reef dive sites featuring sharks, rays, turtles, and vibrant coral. Depths 5–40 m, visibility up to 40 m. Suitable for novice to intermediate divers.
- [Dive Safety](https://poseidon-cruises.com.au/dive-safety): Essential dive safety information and medical requirements for Great Barrier Reef diving, including fitness, medical questionnaires, and safety protocols.

## Plan Your Trip

- [Weather](https://poseidon-cruises.com.au/weather): Current Great Barrier Reef weather conditions and Port Douglas forecasts to plan your diving and snorkelling adventure.
- [FAQs](https://poseidon-cruises.com.au/faqs): Frequently asked questions about Great Barrier Reef diving and snorkelling, covering certification, marine life, reef sites, and what to expect.
- [Contact](https://poseidon-cruises.com.au/contact): Contact Poseidon Cruises in Port Douglas. Phone +61 (07) 4087 2100. Marina location for Great Barrier Reef tours.

## About Poseidon

- [About / The Vessel](https://poseidon-cruises.com.au/about): About Poseidon Cruises — a premium 24-metre dive vessel offering Great Barrier Reef experiences from Port Douglas, with air-conditioned comfort for 89 passengers.
- [Ecotourism](https://poseidon-cruises.com.au/ecotourism): Poseidon Cruises' ecotourism and sustainability practices on the Great Barrier Reef.

## Optional

- [Sitemap](https://poseidon-cruises.com.au/sitemap.xml)