I am thinking of doing the Beaches and Reefs that ends on Sunday January 10th 2010 in Cairns. The itinerary states, "Say a final farewell to your new friends as your trip ends this morning" so does that mean that when you wake up your tour is over, no gathering or last breakfast and your last part of your tour is pretty much the previous night? I have a flight to catch at 10:25 am on that Sunday, so just want to make sure I am not missing out on anything.

according to contiki's beach and reefs page:

Important Trip Details

* Tour starts in Sydney at 7.00am and ends in Cairns at 12.00pm

Most likely you are missing out on the final morning of Exploration with Friends due to the time your plane leaves.

Hello TrellBell. Does your tour begin in Sydney on Dec 26th? The tour I am scheduled for the Beaches and Reefs is Dec 24-Jan 10th. My buddy let me down so I am going solo. I won't get to Australia till the 26th of Dec. Let me know, it would be nice to know who is all going on this tour

What happens on the last day is that you have the option of going to an aboriginal cultural centre in the morning (I don't remember the exact name) where you will see a show and learn how to throw a boomerang, spear and will get to try playing a didgeridoo. You will then be brought back to the Cairns Colonial club resort at noon where the people on your tour going to Cape Tribulation will depart and the rest of you will be free to do as you please.