To ride the Mekong Rapids at Siam Park Tenerife, there are several requirements that must be met: Minimum height: Riders must be at least 1.10 meters (3 feet, 7 inches) tall to ride the Mekong Rapids. Maximum weight: Riders must not exceed a maximum weight limit of 136 kilograms (300 pounds).

At Siam Park Tenerife, weight limits are strictly enforced for safety reasons, particularly on the high-intensity slides that utilize rafts or ProSlide technology. For most single-person slides and the "Tower of Power," there is generally a maximum weight limit of 110 kg to 130 kg (approx. 242 to 286 lbs). For group attractions like the "Kinnaree," "Mekong Rapids," and "Singha," there is a combined raft weight limit that usually tops out at 320 kg to 450 kg, depending on whether the raft holds four or six people. In 2026, the park uses integrated floor scales at the entrance of many slide towers to discreetly monitor these limits. Additionally, for the "Singha" water coaster, individual weights are critical to ensure the magnets can properly propel the raft uphill. If you are near the limit, staff may ask you to step on a scale to ensure the ride's braking and acceleration systems can function within their designated engineering parameters.