The Spanish ships left Esquimalt very early on 10 June. They made for Smith Island (Isla de Bonilla) and, after sighting it, turned to the north, making for Lopez Island. They anchored near Point Colville at the southern end of Lopez Island. A party was sent ashore to make an observation of the first moon of Jupiter, by which they were able to improve their longitude measurements. The next day they sailed northeast through part of Rosario Strait and through Guemes Channel into Padilla Bay, noting a village on the shore of Guemes Island. That evening they anchored in Bellingham Bay (Seno de Gaston).