Flanked by the Auspicious Cloud and Mountainous Cloud Peaks, the 6.5-metre-high Cloud-capped Peak stands aloft to the no冠云峰高6.5米，为宋代花石纲遗物，因石巅高耸，四展如冠，取名“冠云”、“瑞云”、“岫云”屏立左右，为留园著名的姐妹三峰。