What kind of internet coverage can I expect with Truly Roaming on Luxembourg's Mullerthal Trail?

With Truly Roaming, you'll generally find signal at the trailheads and in charming villages like Echternach along the Mullerthal Trail. However, be aware that coverage may become intermittent or drop in the deep rocky gorges and dense forests of this "Little Switzerland" region. It's wise to download offline maps before venturing deep into the trails.