In addition to the kayaking you mentioned, there are the following kinds, but if you want to subdivide it, you can also divide it into many. For your reference.
1. Swimming.
The Olympic swimming competition is divided into 6 major events and 32 minor events: freestyle, breaststroke, butterfly, backstroke, medley and relay (freestyle and medley).
dive
1904 became an Olympic event. According to the direction and structure of take-off action, it can be divided into five groups: forward, backward, inward, reflexive and twist. Each group has prescribed movements and optional movements, and each movement has a different difficulty coefficient. According to the air posture of diving, it can be divided into four types: A (straight body), B (bent body), C (tuck) and D (somersault and twist). There are platform diving and springboard diving.
3.water polo.
The water polo match is played between two teams, each with seven players. During the competition, competitors' doors must not touch the wall or bottom of the pool, and they should always swim or tread on the water. The competition is divided into four sections, and the actual competition time is 7 minutes, with a 2-minute break between sections. However, due to frequent violations or fouls in the game, the game is often interrupted. Usually a game lasts 65 to 70 minutes.
4. sailing boat
Sailing is one of the water sports. Sailing competition is a sport in which athletes drive sailboats at a specified speed on the field. In sailing, athletes rely on the natural wind to act on the sails and push the ships forward. It is a sports event integrating competition, entertainment, viewing and exploration. It has high ornamental value and is deeply loved by people. Modern sailing has become one of the most popular and favorite sports activities in coastal countries and regions around the world, and it is also an important content for people of all countries to exchange sports culture.
5. Synchronized swimming.
At the Olympic Games, synchronized swimming has only two gold medals: synchronized swimming and synchronized swimming. The number of entries is: 8 teams from 8 delegations participate in team events, and 8 athletes from each team play in the competition; 24 pairs of athletes from 24 delegations participated in the synchronized event.
Both pairs and team events can choose their own music and movements in free competition. Usually, the movements of this program are creative and recognizable, and also contain difficult movements. A set of such combinations should include changes in mood and speed, as well as innovative movements, complex combinations and combination changes, and spectacular movements. Free competition time: 4 minutes for double events and 5 minutes for team events.
Synchronized swimming is an artistic and elegant sport, which requires strength and skills and needs to be mastered by athletes through years of continuous training. Players have to do a lot of lifts, turns and bends in the water, and all these actions can't be done with the help of the ground at the bottom of the pool. Many movements of the players are completed without breathing in the water, such as handstand. During the whole competition, no matter how nervous, athletes should try to stay relaxed. The referee will score according to the difficulty and quality of the action and the artistic performance.