you can do the cruise check-in at the resort. Just remember to ask when you check in when the cruise desk will be staffed. At CBR they were there 2 mornings and they called us the first one (we were gone already) and then we wasted 45 minutes of an early start day at AK at the cruise desk since they were only there between 8-11 am. And even if they tell you that only one adult is needed you may want to have all adults, my dh would not have been able to do it without me, maybe because we have 2 different citizenships, not sure but they needed both of us. It saved a huge amount of time at the terminal so well worth it.