We did the Talum and beach break and it was amazing. Our guide was very detailed and awesome. There was some on your own time but vast majority was with guide.
It was also 8 hours and we were the last group back to the ship but never felt concerned they’d leave with a tour group.
The envelope can be used to designate an extra tip to anyone you’ve encountered along the way. It’s a standard process that they leave an envelope in every room.
I prefer to hand deliver anything extra I give directly to the person
I’ve only ever not received one once and I think that’s because we were in the room during the normal turn down time when they do the animals and the attendant had to come back while we were at our show.
On a side note, i requested a dinosaur and was not disappointed ?