Mandatory tips, adult beverages, parking at the pier, better coffee, soft drinks and bottled water. There are also some restaurants on the ship that are extra.
Paul’s got it.
There are aviation themed cruises available.
Probably won't be crowded lol.
LOL. Aviation themed? Aircraft carrier?
We do an annual music cruise. We buy either a beer and wine or soft drink package as one of the add-ons, since we did the math and it comes out even with our typical spend. On this particular cruise it makes things simpler since you get s wristband and you just order whatever. Their combo of free drinks (machine mixed lemonade, iced tea, coffee and water) is pretty boring after a week of it. Most will also use tiny little glasses and cups for this. Bring a refillable thermal cup.
Gratuities are the other big thing not included in the ticket prices and they’re mandatory, which is fine if you look up how the staff is paid. Not much. Most cruise lines will collect this on the last day and/or bill you. There’s sometimes an option to pre-pay the base gratuity also.
Also if the ship is stopping at one of the privately owned cruise line islands, expect everything on them to cost about double or triple what it would if the ship stopped at a “normal” port. That said, on our cruise anyway, they set up a stage and the music continues on the beach, so nothing to complain about. Regular cruises, it would just be a captive beach and restaurants, bars, etc. None of which is included in the cruise ticket.
Excursions through the cruise line are sometimes higher than the locals and sometimes not. Worth a little research. The convenience of dock pickup and on some lines if the excursion is theirs and runs late getting back to the boat for some reason they have more reason to hold the boat. Rare to have a problem with that but the boat doesn’t hold for anyone usually.
And someone already mentioned the upscale dining. If you don’t want the cafeteria style food or want to be able to not do the formal dining room and/or a different schedule than those have, or just want one of the upscale cuisines offered, those are an extra charge on board also.
So that’s some of the add-ons. You can avoid some of this but not the gratuities if you’re going “on the cheap” or if you’re a first timer and didn’t know about it and didn’t budget for it. Most lines give you a card for on board and pier ID that doubles as a payment card on board and these things go on your “onboard account” which they’re holding a credit card to pay at the end or you can deposit cash if you’re on a budget and run the cash down.
Have fun. We did one “regular” cruise years ago and it’s not our cup of tea. But we’ve been doing the music cruise for years now. The themed cruises can be great.