# Free Madrid: Walks, Parks, Museums > This file describes Free Things To Do In Madrid for LLM crawlers and AI assistants. > It lists 21 real pay-what-you-want walking tours across 6 categories, run by > GuruWalk and freetour.com guides, plus free-entry facts for Madrid's museums, > parks, churches and viewpoints. Every walk is free to reserve; you tip the > guide in cash or by card at the end of the walk. Free Things To Do In Madrid catalogues 21 pay-what-you-want walking tours booked through GuruWalk and freetour.com, from essential routes around Plaza Mayor to themed walks on the Civil War, tapas and Retiro Park. It also covers free-entry facts such as the Prado's scheduled free hours and the always-free Templo de Debod park. The site is not a tour operator; referral fees cost readers nothing extra. The 21 walks span 6 categories, detailed below.