The beaches of Santorini are made of fine black or red volcanic sand, which heats to a ferocious temperature in the summer sun.
The volcanic sand at the beaches of Santorini can get very hot under the summer sun.
mnli hypothesis: The volcanic sand at the beaches of Santorini can get very hot under the summer sun. premise: The beaches of Santorini are made of fine black or red volcanic sand, which heats to a ferocious temperature in the summer sun.