-Carnival Gift Cards can be used on almost anything: 
‌1-Towards the purchase of a Carnival cruise, activities/shore excursions, and redeemed onboard toward the Sail & Sign account for gifts, drinks, and fun. 
‌2-Redemption Instructions To redeem towards the purchase of a Carnival cruise, call 1-800-Carnival or book online at www.carnival.com. 
‌3-To redeem towards activities/shore excursions or onboard gifts, drinks and fun, print and bring this e card to the Guest Services Desk on board your cruise ship so it can be credited towards your Sail & Sign account.