Two members of the unit who were in the Portmarnock area went to the location quickly. When Howth ILB arrived on scene the crew spoke to a fishing boat near to the shore but reported it did not require any assistance. The Howth CG members on shore searched the beach but also didn't find any boat. The units on scene were stood down by Dublin MRCC after a thorough search with nothing to report. Considered call with good intent.