eSIM Cancun and Riviera Maya — 2026 guide for Playa del Carmen, Tulum, Cozumel, Holbox
eSIM for Cancun and Riviera Maya: Telcel coverage in Tulum, Playa del Carmen, Cozumel, Holbox and the cenotes. Airalo pricing, Movistar/AT&T alternatives, Chichen Itza day-trip. Guide tested May 2026.