User blog comment:Alix Weaver/Boss Fighting - Am I prepared?/@comment-4697378-20120202174700/@comment-4581788-20120208150753

Do be warned: Flying Island homes, while cool initially, are risky as hell after the Wall of Flesh is dead. If you are over 500 (small)/800 (large) feet above ground level, you will be provoking Wyvern attacks. Constantly.