>>20646600I think the sign is a good enough indication, though i wouldnt be against getting the map from your rivals parents the first time you go there.
Or maybe throw an NPC on one of side paths that says "I should head east to Tremol Town to shop at the Pokemart" or as a trainer dialogue after beating them, mayybe something about revives or whatever. Just a thought.
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Also, newest version with hyper voice.