Party
A party sounded like a good idea to everybody. Shore leave had been cancelled once the whole fiasco with the CAT6 mercenaries and the clone all tried to kill Shepard. Why the hell not? The galaxy could go one day without Shepard. Besides, the crew deserved a break. And it would be a great way to reconnect with old friends and spend just one last day together.
The party was absolutely rowdy. People drank, danced, and laughed. Shepard reminisced with some old friends, all while making new memories in the process. Like Tali for example, who got so drunk, she started having fantasies a threesome with Shepard and Garrus.
Shepard new she'd have a killer hangover once the night ended but it would be damned worth it. She had a damn good ride on that ship with all her friends.
And she wouldn't trade those years for anything.