British citizens planning to travel to Cambodia on a tourist visa can easily obtain an e-visa through the Cambodian e-visa website. The e-visa allows for a single entry and is valid for a maximum stay of 30 days within 90 days of issuance. Requirements include a passport valid for at least six months, a recent electronically scanned photograph, and a credit/debit card for visa fee payment. Processing typically takes three business days. Additionally, all tourists are required to complete an e-arrival card at least 7 days before entry.