My cruise is fully paid, and I have some OBC. When I reserve an excursion do I pay for it right away with a credit card, or is it charged to my OBC?

Thanks

you  need more than an onboard credit   just got back from alaska   spent over 1400 on excursions    so you need a wad in your pocket   very expensive in alaska   but the time of your life   you will never forget  alaska   any  questions about what to do   just let me know

karokequeen, by any chance did you do the dog seldding and heklicopter in juneau? andif so did you book thru carnival or on you own.

I would book everything thourgh carnival. The rates are better and they will gett you back to the ship. The same as there flyaway program