Hi Catherine!
I celebrated my last birthday on board Disney Cruise Line, and it was definitely a celebration I will always remember! Be sure to stop by Guest Services and pick up a special birthday button so your husband can wear it throughout your vacation so the crew and other Guests can celebrate him as well! Also, be sure Disney Cruise Line has his birthday noted on your reservation so he can be recognized at dinner that evening!
Celebration Packages which includes festive stateroom decorations can be purchased as an added surprise!
There are many fabulous Port Adventures offered in Cozumel that I'm sure would make a wonderful gift for your husband! A dolphin experience would be incredible, but may be a bit more than you want to spend so
Everybody Loves Rays might be a more doable option for your family. You can see some amazing stingrays (barb-free) up close and personal! After the experience, your family will have an hour to explore the Seaside Club before heading back to the pier.
I hope my suggestions help, Catherine! Thanks so much for using the Moms Panel for your cruise planning!
Have a magical day!
Nancy