Swarm of Suitors

Event: Swarm of Suitors is an event quest in Fallout 76.

Quick walkthrough
Wander about Toxic Valley and if you happen to be within near Grafton Lake, you'll likely receive a communication over the radio from the Grafton Mayor. He'll ask you to help exterminate the "crab-like creature" hordes from entering the lake.

Detailed walkthrough

 * At least one player get to the island
 * Kill mirelurk leader before it reaches the spawning grounds
 * Stop the horde from reaching the spawning grounds
 * Kill the next mirelurk leader before it reaches the spawning grounds
 * Stop the next horde from reaching the spawning grounds
 * Kill the last mirelurk leader before it reaches the spawning grounds
 * Stop the last horde from reaching the spawning ground
 * Kill the mirelurk wueen