What are the top things to do in Las Letras Quarter this week?

The top things to do in Las Letras Quarter are:<a href='/madrid-l46/madrid-3-hour-electric-bike-tour-t400510/'>Madrid: 3-Hour Electric Bike Tour</a><a href='/madrid-l46/madrid-retiro-park-15-hour-segway-tour-t65594/'>Madrid: Retiro Park 1.5-Hour Segway Tour</a><a href='/madrid-l46/majestic-madrid-25-hour-walking-tour-t37017/'>Majestic Madrid 2.5-Hour Walking Tour</a><a href='/madrid-l46/madrid-tour-of-the-historic-city-center-t32690/'>Madrid: Tour of the Historic City Center</a><a href='/madrid-l46/madrid-retiro-park-and-literary-quarter-by-bike-t235357/'>Madrid: Retiro Park and Literary Quarter by Bike</a>

Which tours in Las Letras Quarter are taking additional COVID-19 precautions?

These experiences in Las Letras Quarter are taking additional COVID-19 precautions:<a href='/madrid-l46/madrid-3-hour-electric-bike-tour-t400510/'>Madrid: 3-Hour Electric Bike Tour</a><a href='/madrid-l46/madrid-retiro-park-15-hour-segway-tour-t65594/'>Madrid: Retiro Park 1.5-Hour Segway Tour</a><a href='/madrid-l46/majestic-madrid-25-hour-walking-tour-t37017/'>Majestic Madrid 2.5-Hour Walking Tour</a><a href='/madrid-l46/madrid-retiro-park-and-literary-quarter-by-bike-t235357/'>Madrid: Retiro Park and Literary Quarter by Bike</a><a href='/madrid-l46/madrid-literary-quarter-retiro-park-electric-bike-tour-t66854/'>Madrid: Literary Quarter & Retiro Park Electric Bike Tour</a>