Can I Extend My 60-Day Tourist Visa in Thailand and Get Another 30 Days via Border Crossing?

The user is inquiring about extending their 60-day tourist visa by 30 days and whether they can subsequently make an overland border crossing to obtain an additional 30 days. Community responses indicate that a 30-day extension is possible, and upon crossing the border, they may be eligible for another 30 days depending on their nationality and specific border conditions.