Goblin Surfboard

Coming in Patch 11.1.

Riding Requirements:

Level 10
Apprentice Riding (ground)
Expert Riding (flying)

Source:

Tawny Seabraid in Stormwind City.
Wilder Seabraid in Stormwind City.
Shiri in Valley of Strength, Orgrimmar.
Zen'kala in Valley of Strength, Orgrimmar.

Notes:

This blue flying surfboard will be obtainable from the Trading Post in an upcoming month. Unfortunately we can't say exactly when, as Blizzard don't announce Trading Post offerings ahead of time. Despite being added to the database in Patch 11.1 it's possible this mount will appear in a later patch.

Travel Mode:

Ground (+60% or +100% speed)
Flying (+150%, +280% or +310% speed)

Speed depends on your riding skill.

Other Mounts Using the Same Model:

Soweezi's Vintage Waveshredder

Pearlescent Goblin Wave Shredder

Bronze Goblin Waveshredder

More info on Wowhead:

Goblin Surfboard taught by Goblin Surfboard