The sun sets on our trip

The central island is a volcano which we hiked up the day before. All
of Santorini was formed by the volcano, hence the ring shape of the
island, the black sand beaches, and the (luke warm) hot springs that
we swam in.

From here, it was a bus to an overnight ferry to Athens. Then some
hiking to kill the day. Then a flight to London and we just spent the
night at Heathrow. Actually not as bad as it sounds. The plan is to
see some sights before our afternoon flight to Chicago.

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