Seems to me a weird test of the market – Deep Bay is far off, and cycling thro flat wetland areas surely not ideal for people who really like cycling.
I’d hope that this is in conjunction with WWF, which manages Mai Po; could readily cycle about in Deep Bay area near but outside Mai Po, and not cause significant disturbance.
Indeed, I’ve long believed there should be tourism like this, inc locals, to Deep Bay area – providing, that is, benefits outweigh harm. Benefits being in form of visitors bringing some revenue, and enthusiasm, that in turn help with protecting the area, maintaining habitats for birds and other wildlife.