Getting close to an animal that weighs many tons — in a watery environment that feels foreign to us land-bound mammals — is exciting and invigorating. Such an encounter can establish a stronger connection to nature. That’s just one reason why whale watching tours have skyrocketed since the 1980s — people love to get close. However, sometimes we get way too close. These videos show eight examples of accidental and sometimes purposeful proximity to whales and orcas that leave the participants a little shaky with adrenaline.