Thames Discovery Programme:
Sampling a possible fish trap
Thames Discovery Programme:
View upstream
Thames Discovery Programme:
Gustav and Mark
Thames Discovery Programme:
Comedy waders
Thames Discovery Programme:
View towards Kew Bridge
Thames Discovery Programme:
Locating the samples
Thames Discovery Programme:
Locating the samples
Thames Discovery Programme:
View downstream towards Oliver's Ait
Thames Discovery Programme:
Underwater survey
Thames Discovery Programme:
Underwater sampling