I believe the max table is 10/12 so you would likely be at 2 tables. You can email before (our agent did on our behalf) and then when you get on board head to the dining room and confirm your seating arrangements. If I remember correctly it’s fire code rules that prevent them from too large of tables being grouped. Because of your parties size I would make sure to do both. Ours was a party of five which is much easier to rearrange. Also make sure when they break up your tables to let them know if you are ok with a mixed table ie 2 tables of ten so your party and another party of 5 would join you at one table. Personally I like mixed tables, it’s nice to meet other people!