Tomb Raider Classics Longest Dives
These are my candidates. The first clip, from the TR2 Gold level The Cold War, shows what may be the longest dive where Lara survives; she performs 2 full flips during the swan dive, and bugs are needed to get up there. The other two clips are from TR2, Floating Islands and TR3, Thames Wharf; in both Lara seems to do almost 3 flips.