The material below is Open Game Content from a 3PP Source
This immense whale moves slowly through the water with a grace that seems incongruous, given its immense size.
Whale (CR 10; XP 9,600)
N Gargantuan animal
Init +2; Senses blindsight 120 ft., low-light vision; Perception +23
AC 22, touch 4, flat-footed 22
(–2 Dex, +18 natural, –4 size)
hp 157 (15d8+90)
Fort +17, Ref +7, Will +7
Speed swim 40 ft.
Melee tail slap +21 (4d6+21) or bite +21 (4d6+21)
Space 20 ft.; Reach 20 ft.
Special Attacks capsize
Str 38, Dex 6, Con 23, Int 2, Wis 11, Cha 5
Base Atk +11; CMB +29; CMD 37 (can't be tripped)
Feats Diehard, Endurance, Great Fortitude, Improved Bull Rush, Improved Initiative, Iron Will, Power Attack, Skill Focus (Perception)
Skills Perception +23, Swim +30; Racial Modifiers +4 Perception
SQ hold breath
Environment any oceans
Organization solitary, pair, or pod (3–16)
Capsize (Ex) A whale can attempt to capsize a boat or ship by ramming it as a charge attack and making a CMB check. The DC of this check is 25, or the result of the captain's Profession (sailor) check, whichever is higher. For each size category the ship is larger than the whale's size, the whale takes a cumulative –10 penalty on this CMB check.
Whales are frequently hunted for their meat and the valuable oil in their blubber. Baleen whales have no teeth and attack with a tail slap; toothed whales like sperm whales instead attack with a bite. Whale companions are smaller species—rules for such companions are the same as those for orcas.