Can I expect to have a mobile signal with HotelESIM while on the ferry to Culebra or Vieques?

Yes, for the majority of your journey, you can anticipate a stable signal with HotelESIM while traveling on the ferry to Culebra or Vieques. The ferry route generally stays within proximity to the coastline, which helps maintain connectivity. While there might be brief moments of signal fluctuation as the ferry crosses deeper channels, you should be able to browse, check messages, or even stream for most of the 60-90 minute ride. It's a great way to stay connected and plan your island adventures en route!