Shared bathrooms are common on the Langtang Gosainkunda Trek, usually with separate toilets, showers, and sinks—though sometimes sinks are outdoors. Toilets may be sit-down or squat style, and toilet paper isn’t provided, so bring your own and don’t flush it; use the bin instead.
Showers are mostly solar-heated; some guesthouses offer gas showers or hot water buckets for a fee. In cold weather, pipes may freeze, limiting water supply until warmed by the sun.