UUYADC is a social and spiritual group for UU young adults (mostly ages 21-39) in the DC area. It organizes local events and longer trips that facilitate friendships and good discussion, sometimes about Unitarian Universalist (UU) topics. Some activities include weekend retreats (such as "Winter Escape"), hiking trips, games, picnics, movie watching, lunch/dinner/coffee, theme parks, book reading, etc.
It's a cross-congregational group, inviting members from any UU congregation, or unaffiliated, near the Washington, DC metro area. Any UUYADC members can suggest and lead meetups at any time. Try it! [Although the group "location" says "Washington, DC," only some of the group activities take place there.]