The latitude/longitude units can usually be changed in the general settings of the GPS and on many phone apps. Look for the format for decimal degrees (DDD.DDDDD). If this is not an option, record the latitudes/longitudes in the format provided and convert to decimal degrees at a later time. Here is a suggested online tool to convert between units.
Photos are optional, but can be a good way to visually capture the shoreline conditions, survey activities, and debris documented. See page 11 of the MDMAP Shoreline Survey Guide for suggestions and examples.