Hello ENWorld! I have been getting more into drawing my own Fantasy world maps. Ive watched a few youtube tutorial videos by users such as Questing Beast and WASD20. My specific question though is how could i potentially draw a Caldera of a volcano slightly emerging from the ocean? I have a city, named Fjordnymrhia where the dwarves reside that is built inside of this Caldera. If anybody could help me out or point me to some good recources i would be quite grateful.