Well at the point of this posting I had more bamboo delivered, cut and temporarily lashed as decking, unfortunately we have only found enough to complete two sides of the walkway but it is still enough to do the trick. We pulled the platform approximately 12-15 meters out from the shore directly across from our front gate and tied a mooring rope to a coconut tree. We used doubled-rice sacks as anchors, 5 sacks to an anchor line and one anchor line at each corner of the platform. This is to prevent the platform from twisting at low-tide during stormy weather.
Using the mooring line to the tree also helped to maintain a prospective of 'square' when out in the boats trying to plumb the platform to the island. the current flows in opposite directions, determined by the tides, so the platform drifts. So it makes it more difficult using paddle boats to determine exactly where to drop the first two anchor lines. The mooring line is a huge help as the platform could be easily corrected by one boat while the other boat could drop the anchor lines.
As you can clearly see the anchor line is far from being high-tech. You paddle out and push the rice sack out which is connected directly anchor line. These sacks are filled with rocks and cement chunks and weigh 70-90 (kilograms) each.
Now it gets suffocated... A piece of rope is tied tightly around the neck of the sack, and tightly tied as to have a strong rope loop. Then a medium size stone is placed inside the neck and above the stone the sack is firmly tied. These typed of anchors then has the anchor line threaded through the loop, and then the sack is dropped into the water where it slides down the anchor line were it rests on the seafloor. Four of the type of anchors are used on all four corners of the platform.
The whole process is really simple and new quality rice sacks are sold in most wet-markets. Double or triple the sacks so the will last.