IDiver ("海怪") is a scuba and freediving specialty retailer and dive school based in Bitou, Ruifang District, New Taipei, Taiwan, with an online store shipping worldwide. Alongside its equipment range (masks, fins, BCDs, regulators, wetsuits, freediving gear and dive computers from brands such as Aqua Lung, Scubapro, Suunto, Molchanovs and TUSA), IDiver runs a PADI Open Water beginner scuba course, an Enriched Air (Nitrox) course, a scuba refresher (Re-Active) course, guided fun dives, and freediving instruction including AIDA1 and AIDA2 certification and pool training sessions. The shop also organizes scuba dive-travel trips to destinations such as Bohol and Malapascua in the Philippines, Palau, and Ishigaki/Yonaguni in Japan.