Sunday morning walks in San Pedro seem to very popular. Here is another version of an expats walk (with photos) along the southern end of Ambergris Caye.
"...Just past Victoria House as you walk south is the two mile sign post that basically marks the beginning of the Mosquito Coast. I love this area of Ambergris Caye. Mostly private houses, some resorts. This stretch, in my estimation, would an ideal place to live..."