29 March protest times and locations -- Bangkok Post

The demonstrators will gather at the National Stadium at 3pm before marching on Rama I road to their stage at the intersection with Henry Dunant road.

[ed. this is a short distance]

The rally will close only the intersection and leave Pathumwan and Ratchaprasong intersections open. Crowds will occupy Rama I road from Pathumwan to Ratchaprasong intersections and perhaps Henry Dunant road too.

[ed. Siam Paragon, Siam Center, and Siam Discovery malls will all be closed by management today and, according to the plan right now, tomorrow as well]