A bit late for your information, since your cruise has come and gone. However, if anyone else is interested the theme nights night are Bianco (white night), Gatsby (roaring 20's) and Back to School
I'm a bit surprised at the comment that food is not available at the Byron Beach Club. My understanding is that you can order food (which will be delivered to your lounger) but it is not free.
It definitely pays to shop around for cover. If you are a member of an automobile club (RACQ, NRMA, etc) or have private health insurance, these organisations offer member discounts. Also check with your bank, they may do travel insurance.
We have an upcoming cruise on Encounter and will have a 250mb internet package. Being techno idiots (freaking out about the P&O App for a start!😬) could someone tell us if the internet package we have will accommodate email access (however slow it may be) please. We don't intend spending a lot of time on the net, just a quick scan of emails from time to time.