May we suggest Peru at this time of year? And it's a lot less chilly in Chile. Likewise Madagascar, the country that thinks it’s a continent and a place proving particularly popular at present. How’s that for alliteration? There’s even palatable weather conditions starting to creep into southern Europe, so take a look at the likes of Seville or Porto & the Douro Valley in Portugal.
The bizarre landscapes of Turkey's Cappadocia are also best explored in May after the chilly winter months and before the scorching heat of summer kicks in. Make like a troglodyte and stay in a cave hotel before taking a truly memorable hot air balloon ride over the extraordinary pinnacles and valleys.
Southern and Eastern Europe are really coming into their own at this time of year. Cyprus, Turkey and Portugal spring to mind.
Harriet, Original Traveller