One Piece episode 525 – “Stranded in the Deep, The Straw Hat Crew Gets Lost” – has aired in Japan and will soon be on onepieceofficial.com! If you note in the official English-subbed version we usually do not get a preview at the end of the episode. Have no fear though, as Anime Games Online is here with a video anime preview to episode 526 (Undersea Volcanic Eruption! Sailing To Fishman Island!) thanks to YouTube user MegaPizzaGirl123!
By the way, if you are looking for the scan for episode 526, we made a separate post on it earlier in the day. Check out the One Piece 526 Episode Preview Scan page to take a look!