High five: 5 surprising things you can do under the water

Danish band Between Music has developed instruments for playing under the water, including a hydraulophone, an underwater organ, a crystallophone, a glass harmonica, and even special drums. Their album "Aquasonic" was recorded in various pools at the warm water temperature of 35 degrees. They also utilized a special vocal technique to record the singing.

Are your fish always eating your aquarium plants? Perhaps try aquascaping, the hobby in which you can create the most beautiful underwater landscapes using not only plants but also stones, roots and driftwood — sans fish.

Belgian restaurant "The Pearl" is located in Brussels in one of the world's deepest pools. To get inside, guests have to squeeze into a diving suit and then dive five meters deep into a capsule. And what's on the menu? Seafood, naturally! Every meal has to be individually packed in waterproof glass, justifying the €100 menu price tag per person.

In 2016, British sculptor Jason deCaires Taylor opened his new project off the coast of Lanzarote in the Canaries. His "Museo Atlántico" consists of more than 200 sculptures submerged 14 meters below the water. The portraits, figures and group sculptures were made of environmentally friendly material so they can get populated by animals and plants.

The institution of marriage may be a sinking ship, but the couple above at least had an interesting guest list at their wedding: colorful fish, seahorses, rays and even sharks! It is actually possible to get married in many aquariums across Europe. You can express the obligatory "I do" by blowing bubbles.