Trindade Island, rising 600 km off the Espírito Santo coast, exposes trachyte plugs so stark they could be lifted from the Canaries — yet almost no volcanologist visits them.
Bukit Bombalai in Sabah may be Malaysia's most recently active volcanic centre — its basalts are geologically young and the mud fields nearby still bubble.
Kalkani Crater in Queensland's Undara field was last filled with lava just 190,000 years ago — and the tubes it sent underground still stretch for 160 km.