the park is in the st. lawrence lowlands. it is canada's second smallest national park, after the georgian bay islands national park. this is because it is only . a very large area of the park is marshland and has ponds. this is 70% of the park. the rest of the park is mostly forest. forests are 21% of the park. the sandspit around the park mostly has till plains. these till plains were created in the last ice age.