Yeah, that's different...I was questioning it since Port Canaveral is a frequent embarkation/debarkation port...I've rarely seen it as just a port stop...It's really not that exciting a port stop...it's just a US town...I guess some would get off to see the Space Center...but that is not worth 12 hours...
So, you may find a lot of people staying on...
Typically, in every port, some people leave early and stay in port a long time...a lot of others will leave in the morning, see whatever they want to see, then get back to the ship early...and others will not get off the ship at all...
The schedule of activities onboard is usually pared down a bit from what you'd find on an "At sea" day, but there will be a number of things scheduled...Most ships nowadays, won't open the main dining room for lunch if they're in port (they used to) so lunch will likely be buffet only...In some ports, some people will leave to tour in the morning, return to the ship for lunch, then venture out again in the afternoon...
There is no schedule except the posted time for when you MUST be back to the ship (usually a half an hour before sailing...
Also, note that some ports you will be "docked", others "tendered"...Docked means you just walk off the ship, tendered means they anchor off the coast and suttle you in by smaller boats (called "tenders"--which double as lifeboats)...These sometime entail lines or priority tickets to go out or come back...
Thank you for your help. We weren't sure if we had to get off the ship or not. Now that we know we don't have to, everything will be so much more relaxing. We got a balcony room too and I'm sooo looking forward to sitting and relaxing!