Board a custom Calypso vessel in Port Douglas and head to Agincourt and Opal Reef for a full-day outer reef experience. Snorkel coral gardens, try an introductory dive, and learn reef ecology from onboard guides.
More ways to explore the area's outdoor wonders
You step off the Port Douglas jetty and the boat’s engines hum like a patient animal waking to the day. Salt spray lifts from the coral-blue horizon as the custom Calypso vessel slides away from the coast, heading east toward the outer reef where coral gardens rise from deep water like living islands.
Difficulty
easy
Duration
8 hours
Fitness Level
Suitable for light to moderate fitness; basic swimming ability required for snorkelling and introductory dives
Wildlife
History
This part of the Reef lies within the Traditional Sea Country of the Kuku Yalanji people; European charting and later tourism developed from the 19th century as access improved via Port Douglas.
Conservation
The reef is protected under the Great Barrier Reef Marine Park and UNESCO recognition; adhere to no-touch rules, use reef-safe products and follow operator guidance to reduce impact.
Reserve your spot on the Calypso Outer Great Barrier Reef Cruise from Port Douglas today and enjoy a trusted, highly rated experience designed to help you make the most of your adventure.
Bring reef-safe sunscreen
Use only approved, reef-safe sunscreen and reapply regularly to protect your skin and the coral ecosystem.
Prepare for a full day at sea
Pack a towel, lightweight cover-up, and a dry bag — you’ll be on board for about eight hours with breaks between snorkel sessions.
Bring motion-sickness remedies
If you’re prone to sea sickness, take preventive medication before boarding and sit midship where motion is least felt.
Carry proof of dive certification
If you’re a certified diver, bring your card or digital certification to participate in advanced dives.
Reef-safe sunscreen
Protects skin and prevents chemical damage to corals in tropical waters.
summer
Rash guard or light wetsuit
Provides sun protection and extra warmth during early morning or cooler winter water temperatures.
spring
Tight-fitting snorkel mask
Personal mask improves comfort and visibility compared with rental gear.
Motion-sickness tablets
Helps prevent nausea on choppy crossings, especially if you are prone to seasickness.