Today 64 Biorock structures restore Gili islands’ depths of the sea, mainly those of Gili Trawangan, but also those of Gili Meno in front of Mallias Bungalows and those of Gili Air in front of Blue Marlin Dive.
Notice boards on Gili Trawangan indicate where structures are so that you can find them.

DIFFERENT SORTS OF BIOROCK STRUCTURES

There are three sorts of Biorock structures:

1. Classical Biorock structures, installed between 5 and 20 meters deep, to restore coral reefs in deep waters.
2. Biorock structures installed at 2 or 3 meters deep to restore the coral reefs and protect the beaches. On these structures, corals develop fast and shelter many young fishes.
3. Biorock structures installed at less than one meter deep to struggle beach erosion. Placed on the plateau, these structures slow down the waves and break their force. Thus waves bring sand on the beach and enlarge them.

The Biorock structures installed in Gili islands before the workshop of November 2010:

• Vila Ombak Diving Academy and Vila Ombak Hotel :

2 tunnels at 5 meters since November 2004,
2 tunnels at 5 meters since November 2006,
Big buoyancy dome at 20 meters since November 2006, collapsed in June 2007.

• Scallywags :

The fingers anti-erosion structure at 3 meters since December 2008.

• Beach house :

1 Dome at 8 meters since November 2006,
1 Dolphin at 7 meters since August 2008, designed by Celia Gregory,
2 anti-erosion structures at 3 meters since December 2008.

• Tir Na Nog, Irish Bar and Manta dive :

2 anti-erosion structures at 3 meters since December 2008,
1 manta ray at 8 meters since December 2008, designed by Celia Gregory.

• Big bubble dive :

1 tunnel at 12 meters since November 2006,
1 tunnel at 12 meters since December 2008,
1 dome and 1 anti-erosion structure at 3 meters since December 2008.

• Dream divers :

1 cone-chimney structure at 16 meters since November 2006,
1 dome and 1 anti-erosion structure at 3 meters since December 2008.

• Blue Marlin dive :

1 tunnel at 8 meters since November 2006,
1 tunnel at 8 meters since December 2008,
1 dome and 1 anti-erosion structure at 3 meters since December 2008.

• Manta dive :

1 tunnel at 12 meters since November 2006.

• Trawangan dive :

1 tunnel at 5 meters since June 2005,
1 turtle at 5 meters since December 2008, designed by Celia Gregory.

• KoKiTa , Annemarie et Marko :

3 waves and 12 baskets at 0,5-1,5 meters since December 2008.

• Karma Kayak and Britta :

6 waves anti-erosion structures at 0-1 meters since December 2008.

• Trawangan Eco Vilas and Bhuvana :

6 waves anti erosion structures at 0-1 meters since December 2008.

• Vila Almarik - Gangga Divers :

1 tunnel at 4 meters since November 2006,
1 tunnel at 4 meters since May 2009,
1 starfish and heart at 6 meters since January 2010, designed by Celia Gregory.

Biorock structure in shape of manta ray