Position Stays; Movement Traces a Path

position · in

The team is in the tunnel. · containment

into

The team walks into the tunnel. · outside → inside

through

The team walks through the tunnel. · entry → interior path → exit

to

The team walks to the bridge. · destination

across

The team walks across the bridge. · one side → other side

enter + noun

The team enters the tunnel. · direct object, no preposition

to: start → destination · into: outside → inside · across: side A → side B · through: entry → interior → exit