Does EastESIM work on boat trips in Halong Bay, Vietnam?

Signal is generally strong when you are closer to the mainland docks and in the more populated areas of Halong Bay, allowing you to snap and share initial photos of the iconic limestone karsts. However, as your boat cruises deeper into the bay's quieter, more secluded coves and between the towering islands, the connection may become intermittent. While EastESIM strives for wide coverage, the natural topography of the bay can occasionally affect signal strength. Enjoy the stunning views; you'll reconnect as you approach more populated zones.