[Bisevo, Vis, CROATIA] Day 4: Green Cave, Blue Cave, Bisevo, Monk SealCave, Secret Undertunnel Cave, Komiza Vis, Stiniva Bay

What do you do if you are at sea diving but there is a tsunami?

"You stay down, it's safe there", says our speedboat guide, Paul, originally from Zagreb, is a professional diver but decided to stay in Hvar because of the sea. "The sea is my little pond", he says, and knows quite a few of the shipwreck and planewreck areas around the Vis island.

We departed from Hvar town around 10am and our speedboat sped through the open water like a unchained horse, and this isn't metaphorically, because we are going at such high speed that it really does feel like we are galloping across a field of blue and white waves.

Our first stop is the Green cave, and like its name, the cave baths in an aquamarine light of emerald green, pure and austere. We are free to jump off the boat for a short swim.

The Blue Cave, is a sister twin to the Blue cave in Capri, Italy, that around noon time the sunlight reflects through the water that illuminates the cave in azure light.

After the Blue cave, we stopped at Bisevo Island for a lunch break and some swimming by the Porat Beach. The restaurant is the only restaurant open now, and there are rarely any inhabitants on the island. Even the waiter jokes, "The most dangerous thing on this island ? -- is human".

The sandbeach is small, but empty, as if we have been dropped at some abandoned island. What's unique about this beach is that it has "seasons". In summer, it is sand beach and because of the tides, this changes around winter, that it bring in the pebbles and it becomes a pebble beach in winter.

We got the best of worlds, half sand beach and half pebblestone beach.

We also explored the Monk Seal cave, a cave where Mediterreanean monk seals used to reside, but they are now nearly extinct. Nobody really wants to jump in to swim in this cave because it is dark and eery.

Two of my favorite exploration sites are the Undertunnel Cave and Natural Jacuzzi.

"You have to hold your breath for a minute and you will be in an illuminated cave, this is our secret hideout", our guide says. For a minute I was anxious if I could hold my breath long enough to go underneath, but it turns out to be pretty easy. The cave is well-lit with an amazing underwater view.

Then there is the natural jacuzzi, as I call it, because the water here are at least 2-10 degree higher than other places!

The Komiza fisherman village, Island Vis, is also a common place for people to stop by for a short afternoon stroll or take a nap under its glittering sun.