Semaphore

Not something I can read. I wasn't sure what was going on when I spotted this on a ridge near the road but as I rounded the corner I discovered it was inside Fort Rinella which was built by the British in Victorian times to help protect the Grand Harbour of Valletta.

For those who can decipher the signals, I haven't included all of them and not necessarily in the right order either! I'll show my son the full set when he gets back from sea, I'm sure he'll tell me what's being signalled... I'm sure he had to learn some of them as well as morse code.