The Summit is an exterior region located north of the Railroad. The path to it is initially blocked by a boulder and becomes accessible the day after Perfection is achieved.
Entering the Summit for the first time causes a special cutscene to play. The player will sit on the left side of the bench at the top of the summit, and the player's spouse will occupy the right side. If the player is not married, the spot will be occupied by Lewis if the Community Center was restored or Morris if the Joja Warehouse was built. The player will then chat with them.
If Lewis is sitting on the right side of the bench, he will talk about how he's been mayor for a long time, and how nothing has made him as proud as seeing the player make the farm blossom. He will say that the player has taken the farm beyond their Grandpa's wildest dreams and how they have changed the valley forever. He ends by thanking the player.
If Morris is sitting on the right side of the bench, he will talk about how before the player moved, he considered moving into Pelican Town a step back in his career. He then says that the valley has grown on him over the years, and that it's been a humbling experience and opened his eyes to a different way of life. He ends by thanking the player for all the work they have done for Joja.
If the player's spouse is sitting on the right side of the bench, they will first greet the player and talk about how beautiful (or great) it is up at the summit. They will then say how they were thinking about the last # of years (the # of in-game years the player has played so far, including the current one), and how them and the player have been through a lot together during that time but have come so far. There will then be unique dialogue depending on the spouse. This part of the cutscene ends with the player and their spouse kissing.