However, it lay at the end of a long river estuary, and so it could not be used until its approaches were clear.

Many hundreds and even thousands of individuals can be present when the pods join together in river estuaries during the summer.

They are also often seen during the summer in river estuaries, where the feed, socialise and give birth to young.

Its main habitats are coastal areas and river estuaries.

To the west, across the river estuary, is a town called Obbola.

The river estuary is a popular place for surfing despite the local caiman population.

They had reached the margins of the river estuary.

A few weeks later these branches would be moved to a river estuary.

In river estuaries it can occur 10 to 15 miles inland.

The drainage basin and river estuary are in a near pristine condition.