Do your mission, take a photo, share your snap, collect badges.

Your mission...

Worm hunt

Find six earthworms in your garden or local park and identify them using the OPAL earthworm field guide. Take a photo of the wriggliest one.

Just a second

You need to sign in to start this mission.

No account?

You're missing out.

Join in
Mission Information

Earthworms are incredibly important creatures. They aerate the soil helping plants grow and they recycle dead matter. They may look very similar at first glance but there are in fact 27 different species of earthworm in the UK.

The OPAL earthworm field guide will help you identify the most common British earthworms. You can download this for free from the OPAL website -

Follow the guide to find out which earthworm you have found.

As an extra challenge download the OPAL workbook, and complete the whole soil and earthworm survey. Your results will help scientists with valuable research.
Mission Risk: Low
Low. This should be easy but take care.Ensure you have permission from the landowner before you start looking for earthworms.

Remember to wash your hands before eating and cover any open wounds before starting the activity.

Mission Id: 3148

  • Completed count


  • Badge

    OPAL nature explorer badge
  • Challenger


Mission locations

Completed mission
Where an explorer has completed a mission
Mission cluster
A group of missions

Recent activity

Risky business

Doing missions on this website can be dangerous. Always get permission before exploring and make sure your plans are reasonably safe. A place that is safe one moment can become dodgy the next so keep your wits about you. We cannot take any responsibility for any injuries or harmful effects resulting from your actions. It's your job to survive your explorations intact.

To increase your chances of success complete our training and safety tips before starting. That way you are more likely to win currents and keep your head on.