Dave's Wave is a low-key feature on the South Platte River as it runs through Denver, best known among locals for coming alive once summer flows drop off. At those lower, late-season levels it turns into a mellow, forgiving wave that favors a high-volume board over a shortboard. It's not one of the named, documented features on Denver's better-known whitewater reaches, so treat it as a local's spot you find by asking around rather than off a map. Conditions change fast with upstream releases, so check current flow before you paddle out.