Danger in Kallang

Date: 30th October 2007
Time: 1530hrs
Weather: Cloudy & Sunny
Tide: 2.3 mtr (ebbing)
Location: Marina Reservoir
100 to 200 mtrs from Marina Barrage
Water condition: Calm

2 of our Kayakers rented 2 kayaks from 1330hrs to 1630hrs, both are 1 star holder. At that time they were paddling at the above location with that condition. They have already paddled out of the demarcated area for 1 star holder.
Sudden change of condition, water became choppy & under water current built up and draw them towards the only open gate of the Marina Barrage. Due to the funnel effect, also the 4th hour of ebbing tide & only 1 open gate, the current became very strong.
The 2 Kayakers tried to paddle away from the Barrage but they capsized in state. Next moment they were drawn & flushed out of the Barrage together with the kayaks & paddles. They tried to grab on to the gate but failed.
Luckily they have their PFD on all the while, next they found themselves floating in the sea apart. They swam towards each other & floated for about 30 mins before rescue came.
Thunderstorm started at 1600hrs in the Marina Barrage region & club still do not know that this incident have happened.
The 2 Kayakers & 1 kayak were pick up by a foreign boat, then were transferred to Coastguard boat. The Coastguard bought them to the shore, giving them S$20.00 to take a cab back to club.
They arrived back to club at about 1630hrs. When the storm subside @ 1700 hrs the Safety boat were launched to conduct a check.

Condition of Kayakers,
Kayaker 1 - Slight scratches on both hands, no major injuries.
Kayaker 2 - Badly scratched on both hands & arms, no major injuries.

Guys,

We need your assistant, please help to inform your participants about the danger being near the Barrage regardless of 1 star, 2 star or how many stars. Danger will be danger, we can't change it. All have to keep at least 500 mtrs away from the Barrage.