Scamander is a small town at the mouth of the Scamander River between St Helens and St Marys on the north-east coast of Tasmania in Austr…Scamander is a small town at the mouth of the Scamander River between St Helens and St Marys on the north-east coast of Tasmania in Australia. The town is a popular holiday destination because of its wide, sandy beaches and views of the ocean. Recreational activities include surfing, swimming and fishing for bream in the river.