Guardian Camera Club: Gavin Edmonds on rivers

The Big City: From the half demolished Delta Wharf in Greenwich It's a long way across the water to the bright lights of London's financial nerve centre Photograph: Gavinedmonds/Flickr

Tread Carefully: Pigeon searching for scraps along the river at Greenwich, the legs of the coaling jetty feeding the old Woolwich Power Station can be seen in the left of frame Photograph: Gavinedmonds/Flickr

Murky: Goat Wharf, Brentford at low tide Photograph: Gavinedmonds/Flickr

Valediction: Sunset through landing jetty at the disused Morden Wharf in Greenwich Photograph: Gavinedmonds/Flickr

Safe Passage: Dusk and a dogwalker crossing this quaint Thames tributary, Richmond Lock lurks in the background Photograph: Gavinedmonds/Flickr

Descent: Steps at low tide upriver from Richmond Lock Photograph: Gavinedmonds/Flickr