How to find good spots where you can work from? This is a question you can ask Overpass Turbo from the Openstreetmap project.

So let’s look for:

• Picnic tables
• Benches
• Bad weather shelters

Which results in following query code.

[out:json][timeout:25];
(
  node["leisure"="picnic_table"]();
  node["picnic_table"="yes"]();
  node["tourism"="picnic_site"]();
  node["tourism"="shelter"]();
  node["tourism"="table"]();
  node["tourism"="bench"]();
);
out skel qt; 

Thats spits out this nice picture