Hi Abby and Ryan,
I don't know of anyone on Ambergris Caye that includes trips and activities as part of the package. If they do, they'll probably answer you here. The guides and tour companies we know are all independent and usually just book through hotels and don't have package arrangements. Recommend you talk with CV about which trips you are considering and get their pricing. Some will be cheaper due to the "no commission." Happy honeymoon and of course, great marriage!