“The black cod is everything you've heard. Twenty years on we still book the same booth for our anniversary, and it never disappoints.”
Verified OpenTable diner · OpenTable · March 2026
What guests say.
A selection of recent guest feedback from OpenTable, Google and Tripadvisor. For the live, full picture, see our profile on each platform.
“Genuinely the best Japanese in south London. The sushi is fresh, the cocktails are inventive, the service is calm but attentive.”
Verified Google reviewer · Google · February 2026
“A Clapham institution for a reason. Knew us by name on our second visit. The staff make it.”
Verified OpenTable diner · OpenTable · January 2026
“Took clients here, ordered the omakase, didn't have to think about anything. Wagyu came out and the table went quiet.”
Verified Google reviewer · Google · March 2026
“We've eaten at Tsunami three times now and it just gets better. The sashimi platter is exceptional, and the cocktails feel considered rather than gimmicky.”
Verified Tripadvisor reviewer · Tripadvisor · February 2026
“Came for a birthday, ended up staying for two more rounds at the bar. The smoked old fashioned is worth a trip on its own.”
Verified OpenTable diner · OpenTable · December 2025
“If you live in Clapham and you don't know about Tsunami, fix that. Twenty-five years of doing one thing very well.”
Verified Google reviewer · Google · January 2026