The Sanjiangkou Wetland Park sits at the confluence of the Songhua and Heilong rivers, where the combined waters begin their journey east toward the Russian border and the Ussuri River junction. The park provides accessible walks and observation platforms over the marsh and riverine landscape, and is a reasonable introduction to the Sanjiang Plain ecology without the logistical demands of reaching the Honghe reserve.
Waterbirds are present throughout the warmer months — herons, egrets, ducks, and waders are reliably visible — and the reed beds in late summer turn a deep ochre that makes for good photography. In autumn the landscape is particularly striking. The park is reachable by public transport from the city centre, making it a viable half-day excursion for anyone who does not have the time or arrangement to reach Honghe.