Create stairs going from a deck platform down to the terrain using the Draw Stairs tool and wrap them around the corners of the deck using the Allow Wrap setting.
Stairs
71 - Stair Basics
5452 - Stair Landings
409 - Detailing Stair Headroom
381 - Display Newels, Balusters, Railings and Stair Breaklines in Plan view
392 - Aligning Stairs Across Floors
406 - Adding Glass or Cable Rail Panels to Stairs
262 - Offsetting Stair Railings
410 - Creating Deck Stairs with Mitered Corners
390 - Stair Wall Options: Partial Railing, Wall under Stairs, Stairwell
375 - Stair Tread Depth, Automatic Treads, Lock Treads and Set Stair Heights
404 - Design Wainscoting for Walls and Stairways
379 - Customizing Stair Landing Shapes
394 - Creating Winder Stairs
271 - Adding Stair Fittings
415 - Creating Wainscotting Using Railings
387 - Creating a Wheelchair Ramp
198 - Creating an Escalator
196 - Creating an Elevator
388 - Drawing Curved Stairs