Al Dhakira, home of the Al Dhakira mangrove swamp houses a small craft harbour which locals use to go to sea from. The small fishing village is set to be modernised with a major revamp of facilities linked to the hosting of the 2022 world cup in Qatar. The upgrade will most likely change the ambiance of the current location.
This cache, which is placed high and dry, but quite close to the waters edge will give you the opportunity to expereince the old style charm until its hiding place will probably disappear due to "progress".
You will need to bring your own pencil/pen.