I noticed little sand /silt islands in the middle of the firth when crossing the Cromarty Bridge in the bus on my way to Mum's. You don't have the height when travelling by car. The depth is quite limited here but just a few miles away very large luxurious cruise liners can berth easily.
Three good things
1. Up and on the go early!
2. Time for coffee between train and bus
3. Fun coffee stop and nice day for a walk up the road.