Group Reservation Fees

Reservation Fee is Based on a Group Size


(participants + chaperones) $4.50 / Person
Total Group Size Free Chaperone Included Fee
1-15 1 $63
16-20 2 $81
21-25 2 $103.50
26-30 2 $126
31-35 3 $144
36-40 3 $166.50
41-45 3 $189
46-50 4 $207
51-55 4 $229.50
56-60 4 $252
61-65 5 $270
66-70 5 $292.50
71-75 5 $315
76-80 6 $333
81-85 6 $355.50
86-90 6 $378
91-95 7 $396
96-100 7 $418.50
101-105 7 $441
106-110 8 $459
111-115 8 $481.50
116-120 8 $504
121-125 9 $522
126-130 9 $544.50
131-135 9 $567
136-140 10 $585
141-145 10 $607.50
146-150 10 $630
151-155 11 $648
156-160 11 $670.50
161-165 11 $693
166-170 12 $711

Additional Individuals 


Fees for additional individuals, not included in the original reservation, will be collected at the start of each program. The cost is $4.50 for any additional person (children and adults). It is recommended that you have the final count and payment made prior to your reservation. Paying for additional participants on the day of your reservation could alter your program length.

Maximum Participants


The total number of participants (children and adults) we can accommodate are as follows:
Field Trip Options Participants
Catoctin Creek Park and Nature Center 120
Fountain Rock Park and Nature Center 92
Rose Hill Manor Park and Museums 125

Offsite Programs


Offsite programs are an additional $50. Additional fees may apply to out-of-county locations. Call 301-600-1646 for more information.