Aquapolis is the second expansion of cards from the Pokémon TCG's e-reader series and was the first set separate to the holographic cards from the rest of the set and the cards are numbered with an H (H##) Released in the west on the 15th January 2003 and containing a total of 186 cards this set was the first time Crystal Pokemon were introduced to the TCG.
The expansion also featured two accompanying theme decks including The Rock Garden and Abyss. Another added bonus is that box toppers are included.
The symbol for Aquapolis is adopted from the theme of the Japanese e-Card 2 and e-Card 3 sets, which is focused on a remote coastal town and the mysterious ruins of the undersea. Titan Cards offer a wide variety of trading card singles from Pokemon's Aquapolis expansion including standard common and uncommon Pokemon Cards, Trainer Cards and even rare, rare holo and super rare cards subject to availability.