[!tag=VBD] □ □
[!tag=VBD] □ □ □
[!tag=VBD] [□] □
The two realized that it was a possible and decent idea to form a grotto based in Union County and to find more cavers in the local area . Mandatory NSS membership to become a grotto members would significantly increase our numbers . NOT park in the main turnaround at the front entrance or the red fire lane curbs as the West Linn Police will write parking tickets It 's always a good idea to contact a grotto member to let us know you are attending , especially in the summer when some of our meetings are held at campouts . If you are invited to attend a grotto meeting and are then asked to go along on a caving trip , you must always remember the motto of the NSS : " Take only pictures and leave only footprints " or as some cavers say , " Cave softly .