Passport, sunglasses, beach towel and Bitcoin (BTC)? A BTC enthusiast on vacation demonstrated that the world’s largest cryptocurrency could soon become a holiday essential. Eugenio, a Costa Rican Bitcoin maximalist, paid his way on holiday with just Bitcoin in his wallet during a long weekend on Costa Rica’s Pacific coast. A hotspot for Bitcoin adoption and real-life whale spotting, the towns of Uvita, Dominical and Ojochal are home to Bitcoin Jungle, a Bitcoin-beach-inspired project, as wel...