Walk in the Park

Walk in the Park is triggered when one opens a chest in a park sometimes found in the Westmarch Commons in Act V. The gates of the park close and are locked and the only way out is to kill the reapers (Revenant Archers and Revenant Soldiers) that attack you. There are two waves of reaper attacks. Defeating the first one unlock the inner gates and defeating the second one, the outer gates.
The chest contains the "Urzael's Trap" Lore Book.

Opening the chest triggers the "Walk in the Park" event. Note the "It's a Trap" Book on the ground (v2.0.6)

Lore Entries Found in Walk in the Park

• Urzael's Trap (found in the "It's Trap" book)

Associated Achievements

Walk in the Park is in some way involved in the "Field Research" Achievement.