We had cabin 9624, which is a junior suite on the port side at the back of the hump on deck 9, and cabin 2320, which is an accessible ocean view cabin on the starboard side of deck 2.
The junior suite 9624 was spacious enough for 2 with a walk-in closet and plenty of storage cabinets. We had the bed divided into two twins. There was a wall unit with a desk and vanity across from the beds. There was a night stand with a drawer for each bed plus the vanity had three drawers on each side. The vanity also had hinged mirrors on each side with shelves behind the mirrors. There is a curtain that can be closed to partially block the bed area from the sitting area. The sitting area has a couch, two chairs, and a coffee table. The couch can be pulled out to make a double-bed if needed.
The bathroom had a tub, sink, and the toilet. There is a mirror with shelves on each side above the sink plus a shelf under the sink for storage. We received some travel sized bottles of shampoo, conditioner, lotion, body gel, and a box with Q-tips and cotton balls in the bathroom. There was also a dispenser with the typical Royal Caribbean generic soapy goo in the bathtub. We didn't use the provided toiletries so I don't know if they get replenished during the cruise.
The desk had the TV and a few cabinets for storage plus the "fridge" for the mini bar and the safe. We put the sodas and snacks from the mini bar on the desk so the bar attendant would know where the items were and used the fridge for our sodas and water. There was a small coffee maker and hot pot for boiling water for tea in the desk cabinet.
The balcony had a table with 2 straight-back chairs and one reclined chair. The balcony is fully covered and is recessed into the structure of the ship. I haven't been on a balcony that was recessed like that so it had a cave-like feeling, but the recess made it extremely difficult for others to see into the balcony. The railing is also part of the structure, not Plexiglas like on other ships, so you cannot see through it when sitting down on the balcony. This was the first time that I didn't have a lounge chair on the balcony of a junior suite so I asked the cabin steward for one. He said they don't allow lounge chairs on balconies and if I brought one down from the pool deck, he would remove it. Very disappointing!!
I found the bed to be extremely hard, which is typical for Royal Caribbean beds. The cabin steward was able to provide a foam pad, which helped but still too hard.
We discovered that the rumors about not providing ice on Adventure are true. We had no ice bucket in the cabin when we arrived. We asked the steward about the ice bucket and ice and were told that ice was a special request. Once requested, he provided ice twice a day, but new cruisers would probably not know to ask for it.
I had a diamond gift basket in the cabin. When I sailed on Liberty in December, I got a basket with cookies, trail mix, and dried fruit. This time there were only cookies and dried fruit. I'm not sure if the lack of trail mix was a change to the basket or if I got a better basket in December because I was in a grand suite rather than a junior suite. Grand suites get chocolates left during turn-down but junior suites do not.
The ocean view cabin 2320 was larger than normal to allow for wheelchair space. The bed was divided into two twins. There was a wall unit with a closet and vanity across from the beds. The vanity had the TV and two cabinets for storage plus the "fridge" for the mini bar and the safe. The vanity also had hinged mirrors on each side with shelves behind the mirrors. The sitting area had a couch and a coffee table. There was a night stand with a drawer for each bed plus the vanity had three drawers on each side. The closet was small but adequate for two people.
The bathroom had a roll-in shower, sink, and the toilet. There is a mirror with shelves on each side above the sink but no shelf under the sink for storage. There was a dispenser with the generic soapy goo in the shower.