Advice for long layover LHR
We are flying to LHR this December arriving at 08h25, but our connecting flight to JNB does not depart until 18h05.
A few years ago, when we had a long layover at Amsterdam Schipol Airport, we were able to enjoy a mini tour of Amsterdam offered by Holland Tours. The tours departed from the airport and we were taken back in time for our connecting flight.
We are wondering if there are tours from LHR similar to those offered by Holland Tours.
Alternatively, we could wander around on our own but what to do with our carry-on? Can it be stored at the SAA Lounge?
Thanks for any advice.