TheWoWDB
Scheduled world event
The Tidebound Grotto
Thursday 20 August 2026
The Tidebound Grotto is a scheduled world event in the US region.
The client calendar flags it as region-wide.
The client calendar carries 4 entries under this name.
Its 4 dated windows run from 18 August 2026 to 20 August 2026.
The most recent start in the client data was Thursday 20 August 2026.
It runs in The Tidebound Grotto.
August 2026
| Sun | Mon | Tue | Wed | Thu | Fri | Sat |
|---|---|---|---|---|---|---|
| 26 | 27 | 28 | 29 | 30 | 31 | 1 |
| 2 | 3 | 4 | 5 | 6 | 7 | 8 |
| 9 | 10 | 11 | 12 | 13 | 14 | 15 |
| 16 | 17 | 18 | 19 | 20 | 21 | 22 |
| 23 | 24 | 25 | 26 | 27 | 28 | 29 |
| 30 | 31 | 1 | 2 | 3 | 4 | 5 |
Details
Schedule
The client ships 4 calendar windows for this event. Every start below is decoded from the same holiday table the in-game calendar reads, so a date here is a date Blizzard scheduled. Every window in this table has already passed.
- Tuesday 18 August 2026
- Wednesday 19 August 2026
- Thursday 20 August 2026
- Thursday 20 August 2026
About The Tidebound Grotto
Blizzard's own Adventure Guide text for the instance this event runs in.
Hidden beneath the waves of Atal'Utek lies the Tidebound Grotto, a submerged cave veiled by shifting tides. Within, the naga sorceress Nymrissa Wavecaller bends the tides to conceal her domain--and to drown any who dare uncover it.
The Instance
The Tidebound Grotto runs in this instance - bosses, loot and encounter order are on its page.
Other Instance Weeks (8)
Calendar entries that name a dungeon-journal instance, the way this one does.
Related
Calendar Entries (4)
The game client ships 4 calendar entries for The Tidebound Grotto, one per scheduling window and region. This is the main entry.
Background
Art © Blizzard Entertainment. Fan reference, not affiliated.