The pilot states that the bay is foul. A hired speedboat dropped anchor alongside us today and as over 20 knots of wind hit they wanted to leave. Cascais had other ideas and no way could they reclaim their anchor. We had a go at dropping a tripping line down their rode but we are not carrying any large shackles that would sink down the 6mm line which was at about 30 degrees. So we called the rental boat company and the guy tried every trick he could to free the line but eventually gave up and cut the line.