• Open lake water, not a pool, so it suits confident swimmers and younger kids who stay within arm's reach
• Summer water testing by the Bratislava regional public health office, with results posted on the Vajnory district site
• Two lakes, one channel: Veľký bager is the big lake and Malý bager the small one, linked by a channel

Vajnory Lake, which locals call Bager, is a pair of former gravel pits turned swimming lakes: the larger Veľký bager and the smaller Malý bager, joined by a channel. Digging started around 1938 and stopped in 2001.

It is a natural bathing spot, not a pool, so kids swim in open lake water. Through the summer the regional public health office samples the water for bathing quality.