MAGNATRON Rock Lock. "The re-invention of the auto-locking karabiner". Two
independant magnets lock the karabiner nose. 24 7 7 kN. Gate opening = 22mm. NB Only 2 left at this price! $35.00
Search in French and you'll have more joy. "Escalade Nouvelle Caledonie" is a good start. It's a beautiful place by the way. Was there in 2003. Camping and youth hostels available so needn't be expensive.