 He then relayed that the rock would need considerable blasting to create a level area in order lay down a foundation for the lighthouse, and that more money was going to be needed to complete the project.In September 1879, a third survey was ordered, this time headed by John Trewavas, whose experience included the Wolf Rock lighthouse in England.Trewavas was overtaken by large swells and was swept into the sea while attempting a landing, and his body was never recovered.