The latest Pokémon Store Okinawa (ポケモンストア沖縄通) opened in Naha, Okinawa Prefecture （沖縄県那覇市） on March 12th, 2015. The store is selling exclusive tropical vacation wear Pikachu merchandise as part of the grand opening celebration. It located on the first floor of the HAPINAHA mall. HAPINAHA is a combination of the English word "Happy" and "Naha". The store is open from 10am until 10pm daily. This is the 5th Pokémon Store location to open in Japan.

Limited Exclusive Vacation Pikachu Merchandise

Vacation Pikachu Pokémon Store Okinawa ver. (ぬいぐるみ バカンスピカチュウ ポケモンストア 沖縄ver.) - 1620 yen
Mascot with Chain Vacation Pikachu Pokémon Store Okinawa ver. (マスコット バカンスピカチュウ ポケモンストア 沖縄ver.) - 928 yen

Source: http://www.pokemon.jp/info/pokecen/detail/20150312_13222.html