The middle and E parts are lower and partly covered with mangroves, with mangrove lined channels running through them.
Pulau Lobam Kecil, W of pulau Lobam, is hilly and wooded. It appears as three peaks when viewed from N.
A reef, wich is steep-to, almost surrounds the islands and extends in places to the distance of 0.3 mile.
On the N side there is a narrow sandy beach and a village; another village, the houses of which may be seen from the strait, is situated on the S side of the island.