Coral reefs are particularly vulnerable to climate-change impacts such as warming sea-surface temperatures, ocean acidification and increased storm activity. In response to these changes, corals may alter their geographical distributions and expand their ranges into higher latitudes. Coral reef range expansions have occurred during past periods of warming and coral populations have survived in regions protected from adverse conditions, termed ‘refugia’, until conditions improved and reefs replenished. Modern-day climate refugia have been hypothesised in higher latitudes as well as deeper, mesophotic waters (30-150 m depth). Few studies have investigated the role of higher latitude, mesophotic environments in supporting modern corals and their potential as habitat for coral refugia and expansion.