The four major tennis tournaments are played on different surfaces. The US Open is played on a Hard Court, French Open is on Clay, Wimbledon is played on grass, and the Australian Open is played also played on a hard court.
the Davis Cup and Wightman Cup tournaments
Grass tennis is tennis which is played on grass. A famous grass tennis arena is the Wimbledon.
Wimbledon is played on grass.
The French Open is the only one of the four Grand Slam tournaments to be played on clay courts.
The first surface tennis was played on was grass
The All-England Lawn Tennis and Croquet Club in Wimbledon, England, is considered the home of lawn tennis. The club hosts the lone Grand Slam tennis tournament still played on grass.
bocce ball
grass
Tennis courts may be made of virtually any materials, the most notable of which are represented by the four tennis Grand Slam venues: hard (cement or similar; the most common tennis playing surface, played at both the Australian Open and US Open tournaments), clay (true, crushed brick, synthetic; the second most common tennis playing surface, played at the French Open tournament), and grass (the eponymous progenitor of "lawn tennis", specially blended and cut; the least common tennis playing surface, due to its high maintenance costs, played at the Wimbledon and International Tennis Hall of Fame, Rhode Island, USA, tournaments). Other surfaces include artificial grass(carpet), packed sand, and rubberized asphalt. Certain poor areas and island nations use whatever resources they have available, such as crushed sea shells, wood planks, etc, or just put up a make-shift net on deserted tarmacs, empty streets, etc.
Grass courts.
You probably mean "Lawn" tennis. Lawn tennis is simply tennis played on a grass court.