separate, adapt, modify, alter, jettison, adjust, cancel, abandon, redirect, decipher, defer, rethink, correct, improve, rework, revise, postpone, amend, arrange, reshuffle, rearrange, let go (of a plan), solve (a dilemma), cast aside (a plan), invent (a back-up), tweak (one's plan), switch (tactics), step back (to get an overview), regroup, split up, temper (one's enthusiasm), reorganize
grope, wind up, roam, slip, mistake, overlook, neglect, guess, obscure, crisscross, drift, deviate, screw up, reel, misjudge, come to a halt, err, exhaust, end up, backtrack, wander, miscalculate, meander, strand, miss (a fork in the trail), sheer off course, fumble with (a map/compass), ramble, tromp, take a wrong turn
negotiate, take directions from, direct, pilot, navigate, locate, guide, search, note, reroute, helm, conn, read (a map/gps), punch in (an address), find one's way, give directions, plan (a route), map-read, google-map, captain, skipper, select (a route), decipher (a map), identify (a landmark), watch for, look for (landmarks), keep an eye out for, follow (street signs)