We did not have any coverage at the park, but you will after only a 5 minute drive towards town. We also reserved a deluxe cabin and it did not have a TV and DVD player. We don't use them anyway, but most deluxe yurts and cabins we've stayed at have had them and I can picture some parents being unprepared.
Cell coverage is spotty depending on your phone. My wife's iPhone had coverage.
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