Lifeguard in the context of "Swimmers"

Volunteering is an optional and freely chosen act of an individual or group giving their time and labor, often for community service. Many volunteers have specialized training in the fields that they work in, such as medicine, education, or emergency rescue. Others provide their services as needed, such as in response to a natural disaster.

A splash pad or spray pool is a recreation area, often in a public park, for water play that has little or no standing water. This is said to eliminate the need for lifeguards or other supervision, as there is little risk of drowning.

Typically there are ground nozzles that spray water upwards out of the splash pad's raindeck. There may also be other water features such as a rainbow (semicircular pipe shower), or mushroom- or tree-shaped showers. Some splash pads feature movable nozzles similar to those found on fire trucks to allow users to spray others. The showers and ground nozzles are often controlled by a hand activated-motion sensor, to run for limited time.

Standup paddleboarding, stand-up paddleboarding or stand up paddle (SUP) is a water sport born from surfing with modern roots in Hawaii. Standup paddleboarders stand on boards that are floating on the water and use a paddle to propel themselves through the water. The sport was documented in a 2013 report that identified it as the outdoor sporting activity with the most first-time participants in the United States that year. Variations include flat water paddling, racing, surfing, whitewater SUP, yoga, and fishing.

In the traditional form, the board is used in a standing position and a single-sided paddle is used, however, due to the global popularity and use of SUP boards by less experienced users, a sitting position is also used (some boards have a seat) and a kneeling position, sometimes using a double-sided paddle.