JennaRCB

I would go to Chacchoben ruins in Costa Maya and make Cozumel a beach day. I visited the Tulum ruins when I was in Cozumel, but I thought the ferry ride over was terrible (many people were puking). The ruins in Costa Maya just require a 1 hour bus ride each way and are still really impressive!
 
Here's my review on the Chacchoben ruins: https://www.royalcaribbeanblog.com/2021/09/16/excursion-focus-chacchoben-ruins-costa-maya
Tulum ruins review: https://www.royalcaribbeanblog.com/2022/09/30/excursion-focus-tulum-ruins-mayan-cenote-tour-cozumel

I always reserve lunches instead of dinners when I don't have a dining package! $~20-25 instead of $50 per meal means I can have two specialty meals for the price of one. Plus it's a great way to break up a sea day. I would recommend this!

What a great idea!!!! @Matt 🤣

What a great idea!!!! @Matt 🤣

What a great idea!!!! @Matt 🤣

I would go to Chacchoben ruins in Costa Maya and make Cozumel a beach day. I visited the Tulum ruins when I was in Cozumel, but I thought the ferry ride over was terrible (many people were puking). The ruins in Costa Maya just require a 1 hour bus ride each way and are still really impressive!
 
Here's my review on the Chacchoben ruins: https://www.royalcaribbeanblog.com/2021/09/16/excursion-focus-chacchoben-ruins-costa-maya
Tulum ruins review: https://www.royalcaribbeanblog.com/2022/09/30/excursion-focus-tulum-ruins-mayan-cenote-tour-cozumel

I would go to Chacchoben ruins in Costa Maya and make Cozumel a beach day. I visited the Tulum ruins when I was in Cozumel, but I thought the ferry ride over was terrible (many people were puking). The ruins in Costa Maya just require a 1 hour bus ride each way and are still really impressive!
 
Here's my review on the Chacchoben ruins: https://www.royalcaribbeanblog.com/2021/09/16/excursion-focus-chacchoben-ruins-costa-maya
Tulum ruins review: https://www.royalcaribbeanblog.com/2022/09/30/excursion-focus-tulum-ruins-mayan-cenote-tour-cozumel

I nominate @JennaRCB!

Duh!  

Labadee's natural scenery with the surrounding mountains and small beaches in coves throughout the island is unbelievable! My jaw dropped when we were pulling into port.
CocoCay is beautiful, too, but I think Labadee wins when it comes to natural beauty.
CocoCay wins with food and things to do. While Labadee has several activities like the zip line and roller coaster thing, it's nothing compared to CocoCay!
Labadee makes an awesome beach day, though, and I think I'd choose Labadee over CocoCay just because I find the natural environment so beautiful.

It probably is a agreement in the lease to have so many visits to vanuatu.
But tendering at night is going to be a bit risky especially if people have been sampling the local nightlife heavily.
Probably have people put life jackets on after dark.
 

One tip I would add - if budget and scheduling allows, also incorporate a New Zealand cruise into your travels.  Australia is a long way to come, so you may as well make it a cost-efficient exercise (one flight, two cruises). As @twangster can attest, NZ will offer some spectacular scenery.

We are doing a cruise to those Australian ports in November next year on Brilliance of the Seas. I did do a blog for one of our 3 night Australian cruises a few years ago.
Excited for you getting to tick off another continent, travel is so good for the soul.
We are planning our Antarctic adventure some time in 2025/26 which will be our 5th continent. We need to plan a trip to South America or Africa for number 6.

Kangaroo Island is lovely. The port area here in Adelaide isn't the nicest, very industrial and isn't anywhere near the city itself. Although there is a train station right outside the port which takes you into Adelaide itself. Would highly recommend a tour visiting one of the wineries, it's just about all we're famous for 😂

Nice one Jenna. If you're cruising out of Sydney, I recommend booking a hotel at The Rocks (name of the area, not the hotel). It's right on Circular Quay so conveniently close to the terminal, as well as views of the Opera House and Bridge.
I've been to all of those island destinations, but the Australian part of the itinerary I have only ever been to Melbourne. Hit me up if you have any questions about those ports. 
How exciting!

BOOKED MY FIRST AUSTRALIA CRUISE AND SOUTH PACIFIC CRUISE!!!! Royal Caribbean Blog will finally have a live blog and content from Australia! 😎
One year away. The excitement is high. Any tips or advice?!
On a side note, this will be my 6th continent. I think it's time to start planning a cruise to Antarctica. 😄
Going to Adelaide, Melbourne, Eden, Kangaroo Island, Noumea, Lifou, Mare, Isle of Pines, and Mystery Island

I would recommend Jaime's Blue Reef!

BOOKED MY FIRST AUSTRALIA CRUISE AND SOUTH PACIFIC CRUISE!!!! Royal Caribbean Blog will finally have a live blog and content from Australia! 😎
One year away. The excitement is high. Any tips or advice?!
On a side note, this will be my 6th continent. I think it's time to start planning a cruise to Antarctica. 😄
Going to Adelaide, Melbourne, Eden, Kangaroo Island, Noumea, Lifou, Mare, Isle of Pines, and Mystery Island

BOOKED MY FIRST AUSTRALIA CRUISE AND SOUTH PACIFIC CRUISE!!!! Royal Caribbean Blog will finally have a live blog and content from Australia! 😎
One year away. The excitement is high. Any tips or advice?!
On a side note, this will be my 6th continent. I think it's time to start planning a cruise to Antarctica. 😄
Going to Adelaide, Melbourne, Eden, Kangaroo Island, Noumea, Lifou, Mare, Isle of Pines, and Mystery Island

BOOKED MY FIRST AUSTRALIA CRUISE AND SOUTH PACIFIC CRUISE!!!! Royal Caribbean Blog will finally have a live blog and content from Australia! 😎
One year away. The excitement is high. Any tips or advice?!
On a side note, this will be my 6th continent. I think it's time to start planning a cruise to Antarctica. 😄
Going to Adelaide, Melbourne, Eden, Kangaroo Island, Noumea, Lifou, Mare, Isle of Pines, and Mystery Island

BOOKED MY FIRST AUSTRALIA CRUISE AND SOUTH PACIFIC CRUISE!!!! Royal Caribbean Blog will finally have a live blog and content from Australia! 😎
One year away. The excitement is high. Any tips or advice?!
On a side note, this will be my 6th continent. I think it's time to start planning a cruise to Antarctica. 😄
Going to Adelaide, Melbourne, Eden, Kangaroo Island, Noumea, Lifou, Mare, Isle of Pines, and Mystery Island

BOOKED MY FIRST AUSTRALIA CRUISE AND SOUTH PACIFIC CRUISE!!!! Royal Caribbean Blog will finally have a live blog and content from Australia! 😎
One year away. The excitement is high. Any tips or advice?!
On a side note, this will be my 6th continent. I think it's time to start planning a cruise to Antarctica. 😄
Going to Adelaide, Melbourne, Eden, Kangaroo Island, Noumea, Lifou, Mare, Isle of Pines, and Mystery Island