This dataset contains measurements of wave height, peak wave period, and water depth taken every 0.5 hours from February 13 to June 12, 2020, at three wave gauge locations along the Fog Point shoreline in Martin National Wildlife Refuge, Maryland. These wave gauges were continuously sampled at 10 Hz, capturing 20-minute bursts every 30 minutes (peak wave periods longer than 7s were removed). Additionally, the dataset includes measurements of current velocity at one location during the same period. A tilt current meter (TCM, Lowell Instruments LLC, short-TCMs, range of 0-60 cm/s), consisting of a tilt-corrected compass in a buoyant casing and attached to a concrete tile at the sediment surface, was used to measure current velocities. The TCM was sampled at 16 Hz in bursts of 20 seconds. The measured wave and current data were used for the analysis of wave attenuation along the living shoreline. Data were obtained to assess the effectiveness of living shoreline structures (e.g., breakwaters) in wave energy attenuation and reduction of shoreline erosion and habitat enhancement for salt marshes.