There is a longtime (May 2002) virtual cache in the Garden of Five Senses (GC59B9). I found it in winter but came back again in other seasons. It's a great place to revisit, so this multi gives you a reason to come back (or visit for the first time).
Posted coordinates are for convenient parking that may be shaded.
Final is at N 40 01.ABC W 76 17.DEF
Checksum for the mystery digits (ABCDEF) is 25. Note that stages and lettered digits are NOT in same order; C and D are flipped; be careful. Also, the park doubled the number of warning signs since I created the cache. B + C should total 3 rather than 6.
Note that there are posted waypoints for all six virtual stages.
Stage 1 (A) is the flagpole at N 40 01.583 N 76 17.810. Approach on the stone path and be almost at the flagpole. The digit for A is the last digit on the plaques on either side of the path. Both plaques closest to the flagpole beside the path have same last digit.
Stage 2 (B) is the upper waterfall at N 40 01.583 W 76 17.761. The digit for B is the number of upright warning signs at this point. (This had been adjusted based on sign changes. Do not enter - Fountain for show only.))
Stage 3 (D) is herb row centered about N 40 01.596 N 76 17.769. The digit for D is the number of large herb signs in this contiguous garden bed. This includes the juniper; pretend everything with those signs is "an herb". Note that this is D digit.
Stage 4 (C) is the lower waterfall at N 40 01.601 W 76 17.756. The digit for C is the number of fountain warning signs at this point. Note that this is C digit. Big hint: Answer is 2.
Stage 5 (E) is the main entrance sign to the Garden of Five Senses on the main road (not at parking) at N 40 01.594 W 76 17.725. The digit for E is the spelled out number that starts the information on the bottom sign.
Stage 6 (F) is the Robert Fulton sign at N 40 01.570 W 76 17.720. The digit for F is the last digit on the sign.
Now that you have collected the digits, go find the physical final and sign the log. It is within fairly easy walking distance of the virtual stages. No river crossings. There is no reason to go into the brush or touch any tall plants. You can walk on grass to groundzero. Be stealthy if there are picnickers.
Congratulations to NoBlueCircles for the FTF with two young children in tow and carrying a three-month-old baby. His wife was not with him.