Opelbad

Opelbad is a public outdoor pool (Freibad) set on the Neroberg hillside above Wiesbaden, run by the city's mattiaqua baths operator. The main draw is the combined heated pool for swimmers and non-swimmers, paired with a separate children's pool and a water slide, so it works for families as well as lap swimmers.

Beyond the water, the site has a Finnish sauna holding around 40 people with an automated löyly cycle, run at roughly 90°C — a notable extra for a summer pool. Terraced lawns give sunbathing space with views over the city, and there's a playground, an outdoor chess field, a volleyball court and a table tennis area, so a visit can easily stretch into a half-day out rather than just a swim.

Food is covered on-site through the bath's own gastronomy offer, ranging from snacks to more substantial meals, which matters since there's little else immediately nearby given the hilltop location. Getting there without a car means a bus to Nerotal followed by the Nerobergbahn funnicular, which is part of the appeal — the ride up is scenic in its own right.

As a city-run Freibad, pricing sits at the affordable end, and tickets can be bought in advance through the mattiaqua webshop or at the door. Exact opening months and any seasonal closures, along with current admission prices, are worth confirming directly before heading out, since outdoor pools of this type typically run on a seasonal schedule.