To get on top of the picnic table in Grounded 2, the general method is to start climbing the picnic tablecloth that drapes to the ground on one side of the table. You use the tablecloth fold to climb up, then cross objects like a butter knife or use the sloped part of the tablecloth to reach the bench. From there, enter the tablecloth tunnel underneath the table including navigating some hostile bugs, then climb up crates to a mallet handle, run across it, and proceed through a cooler area by climbing objects such as a banana and a popsicle stick. Finally, jump down from the edge of the cooler to reach the top of the picnic table. Key details include:

• Start at the south or one side of the picnic tablecloth that reaches the ground.
• Use the fold in the tablecloth to climb.
• Cross the butter knife or use the sloped part above it.
• Enter the tunnel under the tablecloth between glass and gummy.
• Climb boxes and mallet handle, then proceed through the cooler by climbing some fruit objects.
• One also may need chill-reduction gear, as the cooler area chills the character.
• Reaching the top gets you to items like a locked briefcase and an ORC transmitter.

There is also an alternate method involving using explosives to drop a shovel near the picnic table, then using that to climb up, along with a tier 2 hammer to break cooler handles if necessary. This detailed route is the most referenced way to get on top of the picnic table in Grounded 2.