High tides are one challenge of working in tidal wetlands! Here the marsh platform is completely submerged during a spring tide. The boardwalk, which scientists use to access the site, is also under water during this extreme high tide, while the solar panels powering some instruments remain dry. Sensors are deployed in the tidal creek to measure the water chemistry and flow as water enters and exits the marsh. Here we are measuring the export of carbon and nutrients from the marsh to the estuary.